WinXP Home SP2, P4 AGP Aperture is 128MB. I installed catalyst 6.12 but is not stable as Microsoft Driver. Someone wrote referring your article "In the Device Manager, System Devices, find the "CPU to AGP Controller" and manually update it (Update Driver, Select from list, Don't Search- I will choose, etc.etc.) to "PCI standard PCI-to-PCI bridge" But I couldn't do it - I could go as far as "CPU to AGP Controller" and right click and get "Properties" - that's as far as I can go. My issue is still present - at times it boots into regular mode (always boots fine on SafeMode) with display on the screen but when I click "Display" from the control panel display disappears and once it might re-booted! Previoulsy tried catalyst 7.12 and the DVI didn't work but the analog worked fine. Also tried the catalyst 7.5, but it is worse.