Don't worry about it.
You have already been reported to a moderator.
(i'm just kidding mate )
What exact corruption are you seeing ? Pixelation, horizontal or vertical or colored lines ?
Can you clean install the 13.12 whql driver please and see if it's the same ?
Also, can you monitor your cpu and gpu temps with msi afterburner in-game with each driver used ?
Try raising the power limit and fan speed in ccc as well.
Test a little and post back.
gigabyte X58A-UD3R rev.2, core i7 975 3.9ghz (stock voltage), windows 8.1 64-bit, corsair 12gb DDR3 1600mhz 7-7-7-20 RAM, sapphire HD 6990 (stock clocks), coolermaster ultimate 900w PSU.
amd catalyst 14.6 RC2 june23