We are having a problem with one of our new machines running SWX 2011 SP04.  Only seems to be happening to 1 user with a machine set up exactly as others who have no problem.  When performaing mathematical operations on dimension entry (for any sketch entity or feature size), eg 20+20, he gets an error saying value must be between -10000000 and +10000000.  He is also having problems seeing toolbox parts correctly which could be related (equations are not solving) - again, no body else sees this problem using the same toolbox part (network toobox).  Support tried resetting registry which only resulted in breaking the software completely.  Just wondering if anyone else has any ideas.

Machine spec:

HP Z600 - XEON processor

10GB Ram

Nvidia Quadro 2000, Driver 8.17.1.7071

Windows 7 64bit