Hello, I'm having the following problems after trying to install new parts. Video card: Asus EAH3650 Silent Ati HD3650 PCI-Express ASUS ATi VGA drivers from CD in box are not loading: "Setup has determined that the operating system in use is not a 64bit OS and as this Setup is intended for 64bit systems only Setup will now exit". And yet the box says clearly labelled on the outside that it works with Windows 2000. It still says it installed something, but in Display Adapters, I have a warning exclamation point under "ASUS EAH3650 Series". Tried to load Catalyst anyway; ATi Catalyst 8.4 drivers not loading: "Setup did not find a driver compatible with your current hardware or operating system. Setup will now exit." I took the drivers from the "Windows XP Pro/Home / Radeon / Radeon HD 3600 Series" link on ati.amd.com/support/driver.html. (This would make some sense if the basic VGA drivers aren't installed properly.) Would the Catalyst 6.2 drivers found under the "Windows 2000 Pro / Radeon / Radeon Series" be better? I don't care for the best and latest - just something that works... Procedure done: - Before uninstalling old harware, removed all motherboard and display drivers and adapters I could find (Abit NF7-S2 w/ Barton 2500+ & Asus V9280 GeForce4 Ti4800SE), which ended to be only the Asus Enhanced Display Drivers and the Nvidia Drivers. Other new hardware installed: - Intel E2160 CPU (run at stock for now) - Gigabyte P35-DS3L motherboard - 2x 1GB Mushkin PC6400-800MHz memory - Zalman 7000AlCu CPU cooler - Antec EarthWatts 500W Power Supply Hardware kept: - Antec AMB3700 case - Maxtor 80GB IDE drive (main drive) - WD 320GB SATA drive - DVD Burner - Windows 2000 Professional SP4 (Replies consisting stricly of "upgrade your OS, you [insert insult here]" will be cheerfully ignored. Others have made this combination work, plus the video card says it should work.) Thank you.