I have a custom Ribon Tab I use when grading. I have the Edit Geometry and Edit Elevation Panels copied from the Modify Tab.
Every Session I have to Right Click to "show" the panels. It doesn't matter that I have saved the workspace.
This happened in 2011 and now in 2012 as well (32 and 64 bit)
Go into the cui and select your workspace and choose customize workspace.
Go down and untick the tab you are having problems with.
Click the Save all current customization files button. It's the little disk icon up the top in the middle.
Click ok and exit the cui.
Go back into the cui and customize the workspace and add the tab back in.
Click done, save and then ok. it should be sorted. You may have to change your workspace.