1/get the latest drivers for your ATI as well as your mother board and bios - your ATI drivers that came with it were probably made before XP SP2 -
2/ then stop any tray icons from loading using msconfig - more often than not these are the ones that cause the problem - I have a nVidia card and found trouble with the systray icon.
3/ Try using default card settings if you have "tweaked" things up a bit - you maybe over clocking.
But get ALL those drivers.
I installed an ATI All-In-Wonder 9600 Pro AGP 8x card last night, and have had problems since. After installing the card, software, and drivers, and restarting, I have experienced the blue screen of death several dozen times...usually just after I signed in and Windows started to load (although it sometimes let me start to load the internet or another program before crashing). Each time, I received one of two errors: ''DRIVER_IRQL_NOT_LESS_OR_EQUAL'' followed by ''NaiFiltr.sys'' at the end, or ''PFN_LIST_CORRUPT.'' Knowing it was ATI's software/hardware causing the problem, I removed the card and uninstalled all of the software and drivers it came with in Safe Mode.
However, now the Logon utility crashes every time Windows starts normally. I can't click my account and enter my password, or use ctrl+alt+delete for the prompt box. I again started in Safe Mode wih no problem, but System Restore is malfunctioning...every time it goes through the process but after a restart states that the restore process was incomplete.
Is there a way to correct this problem (either from Safe Mode or my other installation of Windows XP) without reinstalling Windows? I have a backup of all my software/files (about a week old), but would prefer not to have to reinstall everything (100+ programs, totaling over 60GB) and reset all preferences.
HP Pavilion a810n:
* WinXP Pro (2x), WinXP64
* AMD Athlon 64 3300+ (2.4GHz)
* 1GB DDR400 PC3200
* ATI All-In-Wonder 9600 Pro
* 160GB Ultra DMA HD
Note: The corruption in question only affects the primary installation of Windows XP Professional w/ SP2. Let me know if you need any more information.