I have a Athlon 1.4 computer with 1 Gb of RAM and a new FireGL T2-128 Video Card. When I run Solidworks 2005 creating parts and small assemblies, I have no problems with the program crashing but when I load large assemblies and begin rotating them the whole computer freezes. Does anyone think it could be a video card problem or RAM problem. I have installed and uninstalled every know driver for the video card. I have been running Windows 2000 for the past 3 years and maybe I thought a new install of Windows 2000 might get all the old crap out.