I run Windows XP Pro on a PIIIm 500 with 256 MB of RAM, and I leave ALL the bells and whistles turned on. I tried turning them off, but it made no real difference in responsiveness. The slow thing about this system is the HD, and the bells and whistles just don't make that much difference in time spent in drive access. I guess it might depend somewhat upon your video subsystem. This one is the ATi 8MB RAGE Mobility P. My guess is that your 850 will be reasonably lively running Windows XP.
- prosaic