We are experimenting with reducing the user privileges in Windows. If we make a user less than a Power User, Revit spits this warning while opening the software for the first time.
Doing exactly what is suggested in the warning dialog - login as admin; open and close revit; login as regular user - solves the issue.
However, certain pre-built User types in Windows restrict users from editing any files / folders in the C drive root directory (C:\) and anything inside the "C:\Program Files". Because of our Revit.ini is sitting uncomfortably in the "C:\Program Files\Revit Architecture 2009\Program", Revit does not like it... (does not update the recent used files, etc.) Writing Journal files also is an issue. Opening up the folder "C:\Program Files\Revit Architecture 2009" to the user has worked so far.