Fewlio posting his ini so people with crapcomps can play! Found it on some forums a week ago but can't find again due to every website making a 12 page guide to tweaking oblivion. The location for putting your ini on XP is ...X:\Documents and Settings\username\My Documents\My Games\Oblivion
You will have to take the values from the oblivion_default.ini in your game folder and paste them over the following:
[Display]
uVideoDeviceIdentifierPart1=3619102434
uVideoDeviceIdentifierPart2=298779152
uVideoDeviceIdentifierPart3=537422459
uVideoDeviceIdentifierPart4=902546081
I suggest you don't edit oblivion_default.ini also, because if you edit the oblivion.ini and want to revert back to the original values you will have to find someone to send you the file.
Don't forget to change the .txt file to .ini, for security reasons board doesn't let me upload an ini.
[attachmentid=1319]