Well, and the minumum recommended requirements are a graphics card supporting at least OpenGL 1.1. Mine supports 1.2.1. I would like it if they would simply tell you that if you do NOT have something capable of supporting 1.5 that you will have serious workflow issues. As for WinXP, well, I have it on my laptop with a Radeon card, and it works great there. My Win98 machine also handles some recording and songwriting duties, and WinXP sucks at that. Hence the usage of Win98 for this machine. Oh well, I guess you cannot win them all.