I was running AutoCAD just now under Windows XP. A little window popped up saying "view hardware performance review" some app that runs within the program and checks your computers hardware. It tells you what is working and what is not supported. More importantly it records your hardware and sends it back to Autodesk so they can make drivers for unsupported hardware configurations. It also gives you a read out of what your hardware setup is. I have a 2007 (Sept) C2D SR MBP 2.4, 2gig RAM, 256mb GeForce 8600M GT. This is what the read out report scanned on my computer: Performance Tuner Results Log Version: 184.108.40.206 Date of Last Tune: 4/28/2008 Machine Configuration --------------------- Processor Speed : 2.4 GHz RAM : 2031 MB 3D Device --------- Name : NVIDIA GeForce 8600M GT Manufacturer : NVIDIA Chip set : GeForce 8600M GT Memory : 512.0 MB Interesting... prob a fluke...thought I'd share though.