We have a bunch of customized blocks and button from AutoCad 2002 and are unable to import them into AutoCad 2009. Error: Cannot Open File 'C:\PID09\PID.mnu' not matter what I do, cuiimport, menuload, menu..etc... can anyone help? Thanks.

Use command _MENULOAD, load *.mnu file and AutoCAD convert *.mnu to *.cui automatically.