Revit 2010 Crashing on Startup

I found another thread about Revit Crashing on Startup which can be found below.

http://forums.autodesk.com/t5/Autodesk-Revit-Structure/Random-Crashes-in-Revit-2010/m-p/2582907

Is Revit crashing on startup?

If so, you may want to look at this thread:
http://discussion.autodesk.com/forums/thread.jspa?threadID=774015
You could try two things:
UI State.dat may be corrupt- More information on this is here:
http://revitclinic.typepad.com/my_weblog/2009/04/revit-2010-ui.html
or here:
http://dorevit.blogspot.com/2010/04/revit-10-crashing-uistatedat.html
Short answer:
To reset the ribbon and Quick Access toolbar, rename or delete the UIState.dat file located in the following folders:

For Windows XP:
%USERPROFILE%\Local Settings\Application Data\Autodesk\Revit\Autodesk Revit Structure 2010

For Windows Vista/ Windows 7:
%LOCALAPPDATA%\Autodesk\Revit\Autodesk Revit Structure 2010

Or a CommCenter file may be corrupt: From the information here:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=15145616&linkID=9243099

This can occur because of a conflict with a Communication Center file. Delete the following file, if present on the workstation at the following location:

Windows XP

Autodesk Revit Structure 2010
c:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Autodesk\Revit\Autodesk Revit Structure 2010\ENU\Components\WebServices\WSCommCntrData.xml

Windows Vista \ Windows 7

Autodesk Revit Structure 2010
C:\Users\%username%\AppData\Local\Autodesk\Revit\Autodesk Revit Structure 2010\ENU\Components\WebServices\WSCommCntrData.xml