Hi all,
When i use "la" command(layer property) in 2009 cad, an error message display, detail as below, how can i solve this matter, plz help if possible.

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ArgumentException: Only TrueType fonts are supported. This is not a TrueType font.
   at System.Drawing.Font.FromLogFont(Object lf, IntPtr hdc)
   at System.Drawing.Font.FromHfont(IntPtr hfont)
   at Autodesk.AutoCAD.Windows.AcMgWinformPalette.ResyncToTheme(AcMgWinformPalette* )
   at Autodesk.AutoCAD.Windows.AcMgWinformPalette.Create(AcMgWinformPalette* , CAdUiPaletteSet* pParentWnd)
   at Autodesk.AutoCAD.Windows.PaletteSet.AddCore(String name, AcMgPalette* pPal)
   at Autodesk.AutoCAD.Windows.PaletteSet.Add(String name, Control control)
   at Autodesk.AutoCAD.LayerManager.PaletteHost..ctor()
   at Autodesk.AutoCAD.LayerManager.PaletteHost.ShowModeless(Boolean bShow)
   at Autodesk.AutoCAD.LayerManager.PaletteHost.RunESW(LayerFilter filter)
   at Autodesk.AutoCAD.LayerManager.Commands.LayerESW()
   at Autodesk.AutoCAD.LayerManager.Commands.RunLayer()
   at Autodesk.AutoCAD.Runtime.CommandClass.InvokeWorker(MethodInfo mi, Object commandObject, Boolean bLispFunction)
   at Autodesk.AutoCAD.Runtime.CommandClass.InvokeWorkerWithExceptionFilter(MethodInfo mi, Object commandObject, Boolean bLispFunction)
   at Autodesk.AutoCAD.Runtime.PerDocumentCommandClass.Invoke(MethodInfo mi, Boolean bLispFunction)
   at Autodesk.AutoCAD.Runtime.CommandClass.CommandThunk.Invoke()


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
acdbmgd
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcdbMgd.DLL
----------------------------------------
System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
PresentationFramework
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.6920.0 (vista_rtm_wcp.061020-1904)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/PresentationFramework/3.0.0.0__31bf3856ad364e35/PresentationFramework.dll
----------------------------------------
PresentationCore
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.6920.0 (vista_rtm_wcp.061020-1904)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_32/PresentationCore/3.0.0.0__31bf3856ad364e35/PresentationCore.dll
----------------------------------------
WindowsBase
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.6920.0 (vista_rtm_wcp.061020-1904)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/WindowsBase/3.0.0.0__31bf3856ad364e35/WindowsBase.dll
----------------------------------------
msvcm80
    Assembly Version: 8.0.50727.762
    Win32 Version: 8.00.50727.762
    CodeBase: file:///C:/WINDOWS/WinSxS/x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.762_x-ww_6b128700/msvcm80.dll
----------------------------------------
acmgd
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/acmgd.DLL
----------------------------------------
AcCustomize
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcCustomize.DLL
----------------------------------------
acmgdinternal
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/acmgdinternal.DLL
----------------------------------------
AdWindows
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AdWindows.DLL
----------------------------------------
System.Xml
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
AcCui
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcCui.DLL
----------------------------------------
AcCustomize.resources
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/en-US/AcCustomize.resources.DLL
----------------------------------------
System.Configuration
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
AcRibbon
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcRibbon.DLL
----------------------------------------
AcRibbon.resources
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/en-US/AcRibbon.resources.DLL
----------------------------------------
AdWindows.resources
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/en-US/AdWindows.resources.DLL
----------------------------------------
AcWindows
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcWindows.DLL
----------------------------------------
AcWindows.resources
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/en-US/AcWindows.resources.DLL
----------------------------------------
PresentationFramework.Luna
    Assembly Version: 3.0.0.0
    Win32 Version: 3.0.6920.0 (vista_rtm_wcp.061020-1904)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/PresentationFramework.Luna/3.0.0.0__31bf3856ad364e35/PresentationFramework.Luna.dll
----------------------------------------
AdWindowsWrapper
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AdWindowsWrapper.DLL
----------------------------------------
AcMgdReverse
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcMgdReverse.DLL
----------------------------------------
AcInfoCenterConn
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcInfoCenterConn.DLL
----------------------------------------
AdInfoCenter
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AdInfoCenter.DLL
----------------------------------------
AdInfoCenter.resources
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/en-US/AdInfoCenter.resources.DLL
----------------------------------------
Accessibility
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
Autodesk.Interop.WSCommCntr1
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/Autodesk.Interop.WSCommCntr1.DLL
----------------------------------------
System.Web.Services
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.42 (RTM.050727-4200)
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Web.Services/2.0.0.0__b03f5f7f11d50a3a/System.Web.Services.dll
----------------------------------------
AcLayer
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/AcLayer.DLL
----------------------------------------
AcLayer.resources
    Assembly Version: 17.2.0.0
    Win32 Version: 17.2.56.0
    CodeBase: file:///C:/Program%20Files/AutoCAD%202009/en-US/AcLayer.resources.DLL
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

I find anything for your problem check here. http://msdn.microsoft.com/en-us/library/5hs4b7a6(VS.80).aspx

I try but I can not understand throughout the information u give. Anyway thanks.

[QUOTE=RyBub]I try but I can not understand throughout the information u give. Anyway thanks.[/QUOTE]Ok make a repair from control panel->add or remove programms->AutoCAD 2009.Or try to repair from your DVD programs.