Your user profile should exist on the C:/ (by way of import while in the project window) of the editor that you are working on. I would try creating a brand new Windows users account, a brand new Avid profile and brand new Avid project and see if it keeps happening. Does it happen in every bay every time or just the one place.
Do other editors have their 0own profiles or do they sahre a generic one?
RD.