Frequent Solidworks 2009 x64 lockup

SW locks up several times a day - Often when I have been awayfrom the desk for a while and come back and just click on SW -usually on larger assembly / but not necessarily super large - itappears to be graphic card related - what ever floats over SW staysthere - I can only stop SW by cntrl alt del - eventually I have todo a complete shutdown - I suspect there is a memory hole in eitherthe ram or the video ram.

I think it started around March on a Friday morning. You mightwonder why I say that particular time. That morning it took 50minutes to login to our corporate network. At the end of the loginthe OS was unpacking and loading files - IT guys say they were notupdating their login script - IT guys say it was probably aautomatic Windows update. By the way - In research for SW lockup Ihave seen references about Office 2007 - Microsoft Office 2007sucks eggs in a major way.

Windows XP Professional x64 Edition Version 2003 Service Pack 2
Intel Xenon CPU 5150 @ 2.66GHz
6.00 GB of RAM
Hp xw6400 Workstation
NVIDIA Quadro FX 3500 - 256 MB
dual monitors
1)HP LP2465 - 1920 X 1200 resolution - color quality Highest(32bit)
2)HP 1740 - 1280 X 1024 resolution - color quality Highest(32bit)SolidworksAdministration