I'm using V2010. Can someone help me populate my Block Authoring Palette.From my Block Editor tab I select the block, it appears ready for editing with the Block Authoring Palettes - All Palettes pick box but all of the tabs are empty.

You could try switching Profiles and see what happens.If that doesn't work then I'd recommend a REPAIR of your installation.  The option should be available from your Windows Add/Remove Programs under the Control panel.Do NOT uninstall then reinstall.  There is no need to take such a drastic action at this time.  If it does come to that there is a recommended procedure to follow posted at the AutoDesk website.

Thanks for your help John. I tried switching profiles and no difference.From my Windows Add/Remove Programs under the Control panel, my AutoCAD 2010 only has 2 options Uninstall/Change i.e. no Repair option unfortunately. I may have to live with it. RegardsDawso

The option does exist.  I know because I've done it twice in the last five years.  Click on Change and see if there is a Remove/Repair option.What OS are you running?

John, you are right "Click on Change and select Remove/Repair option". I tried it (first time for me) but no change to my Block Authoring Palettes, they are still unpopulated. Is it possible to pull them across from the instal CD? I'm running a 64-bit OS & Windows 7.