Hello, I just installed a Quadro FX-4000 in my machine and it's pretty sluggish compared to what I expected. I tried running the SPEC benchmarks for SW2003(SP3.1) and SW2005(SP0.0) and they came back with graphics composites less than that of what they list for several machines with Quadro FX-1100s ... anyone have an idea what's causing my unit to be slow? Running WinXP SP1, Opteron 2.2ghz, 4GB RAM. Thanks, J. Elias Munich, Germany