I purchased a new system in November '06 (ASUS Core 2 Duo P5B Deluxe Motherboard, 2GB Ram, PNY Nvidia Quadro FX 1500 Graphics Card), and have had nothing but problems due to the graphics card. The problems as of the end of January '07 have yet to be resolved. Problems started presenting themselves right away. The monitor had a red overlay over the whole thing. I tried several different DVI cables, and tried the monitor with different systems - result: definitely a graphics card issue. I had the card replaced. Shortly after resolving this problem, the monitor would randomly flash off, then come back on again . After quite a bit of troubleshooting (including replacing the graphics card again, and all the other parts on the system to make sure that it wasn't those parts, and reinitializing the drive to make sure it wasn't software incompatibilities), we finally isolated it to the graphics card. I had called the graphics card manufacturer several times during the course of this process, and they were completely unhelpful. They in an unconcerned, west-coast way, tried to imply that I hadn't done enough trouble shooting. No other 'support'. Since the machine is new, and completely under waranty, I brought it back to my reseller, who is now trying to deal with Nvidia. First, they agreed to replace the card, but when it arrived at the shop, they were surprised to find that Nvidia wanted them to pay 0 for the card (which was a warranty replacement item to begin with, and should not have bee charged for). The shop returned the card, and last I was at the shop, the owner was on the phone yelling at Nvidia trying to understand what had happened and when the replacement card would come through. That was over a week ago. So, this is the 3rd attempt at the card (I must be NUTS). If it doesn't pan out, I'm going over to an ATI FireGL.... Thought I'd post this in case any of you had the same problem or were considering Nvidia. I used to be a big fan of their products, but it seems that since the last time I bought product from them over two years ago, that their product quality, service and support have all dramatically declined.