Solidworks 2008 freezing.

Hi there folks!

One of our designers has reported that when using solid works 2008sp1.1 the system will occasionally freeze with no access to thetask manager. This results in the system being restarted to fix theproblem.

System: Dell XPS 720HC
Memory: 4GB
Graphics: Nvidia GeForce 8800GTX
Processor: 2.9 GHz
O/S: Windows XP 64bit Professional.

Does anyone have any ideas what could be the cause? I have thoughtof replacing the graphics card with one that has beentested.SolidworksAdministration