Hi, I recently purchased a new system (for about 2K), with the following specs: -Intel Core 2 Duo 6600 2.4GhZ processor -Asus P5B Deluxe WiFi edition mobo -2GB Kingston Ram -620W Liberty power supply -nVidia Quadro FX 1500 Graphics card. Shoudl work tickety-boo, but for some reason the monitor keeps flashing off randomly - seems to be a driver issue with the nVidia card. Without going into greusome details, after copious amounts of troubleshooting there has been no resolution to this problem, so I feel that I am at a point where I really need to rebuild a system from the ground up. The types of work I do involve quite a bit of surfacing, and fairly large assemblies with complex surfaces (often around 200 parts, with approximately 25% of them being complex). I think I might try a new board. A few boards I have considered: -Asus P5W DH Deluxe (would the ATI CrossFire Technology conflict with the nVidia Quadro FX 1500?) -Asus nForce board (not sure exactly which one) Any other suggestions? Any preferences? Any combinations to definitely avoid?