How to Modify Your HD2900 BIOS Clock Frequencies by Hex File

[ZenEffect]

this is what i narrowed it down to for driver non working thingy issue. on left is the original inf file, on right is the one i modified just now to figure out exactly what is the cause.

just add the string

HKR,, PP_ForceReportOverdrive4, %REG_DWORD%, 1

to the inf and viola!

now i gotta get rid of ccc and just use ati tray tools.

so it seems that the problem stems from the ati overdrive software. the string forces it into od4, i tried changing the 4 to a 5 and got the previous results of no 3dmode switching. so here u guys go. just add the string to the inf file and you can install THE WHOLE CATALYST SUITE. verified and tested just now :-)