I just downloaded Coolbits 2 because Power Strip was't giving me enough headroom (only 394MHz core, I can go higher)...and I went to overclock my card, but it won't overclock it at all! If I go even 1MHz higher and then run the test it says it failed the test. Riva Tuner did the same. So this poses the question:
I think it maybe doesn't like my XG drivers (standard, not HD), but I'm not sure.
EDIT: Weird...I overclocked to 400/900 in Power Strip and I got the exact same 3DMark05 score as stock settings. Something's screwy here....