Trying to access "properties" palette, ACAD Plant says its "unknown command"

[dmitzel2003]

When I try to use the "properties" palette, ACAD Plant says its "unknown command".  It also says this for the qui kcalculator, design center, quick properties.  I go and modify my cui/workspace setup and save it after I know it looks correct.  Then the next time I restart ACAD Plant, the same palettes are off, and I have to do the same thing all over again.

Does anyone know what the problem may be?

[Rich.O.3d]

have your tried doing a repair on plant3d from control panel/programs