Just wanted to add that i also suffer from the issues described by many people in this thread (and the one over at guru3d) either on 12.11 or 13.1Offler's post
pretty much sums up my issues those being
White/multi colour poly that randomly pop up
Checker board'ed surfaces instead of textures
Screen glitches in windows when using Aero or Firefox (with H/W accel on)
Ive seen one or more of those issues in many DX9 games inc Res Evil 5,Portal II,Dishonored,Batman AC,BF3,BF2BC,FC3,Skyrim,Euro truck sim2
Skyrim seems to suffer badly from the first 4 of the above issues (Which i find really disappointing as Skyrim was the number 1 reason i updated to the 7970 from a 570) i can lessen a little it by using the 12.8 dll files dropped in the game dir. but its still there.
Euro truck Sim2 is by far the worst dx9 title ive tried yet and is pretty much unplayable on the 7970 atm constant flashing glitching no matter the settings
on the other hand ive played
Binary Domain,Transformers FOC/WFC,Alice Madness Returns & DarkSiders II for hours on end and not seen a single issue.
Temp's are always under 75 (core and Vram) either running at stock or with core OC'ed issues still occur.
I held off a full year from getting a 7970 hopping AMD would have worked out the driver kinks for it by now but unless the 13.2 (proper) beta's really clean up or cure the above issues the 7970 will share the same fate as my last ATI card (4870) which was RMA'ed to be replaced with an nV card.