So I have a critical problem with my dual purpose gaming/mining rig.

It has 1 ATI 5770 in it. I just switched mining software too (GUI miner to CGMINER), but that has no effect on my problem.
I'm running Windows 7.

I was fiddling around with the clock and voltage settings and now they only go back up to normal levels when I have CGMINER running when I'm mining!

This makes playing Diablo 3 a bitch. It freezes all the time.

(Normal)Mining:

GPU Core Clock: 950mhz
Memory Clock: 1200mhz
VDDC: 1.200V

Not mining:

GPU Core Clock: 150mhz
Memory Clock: 300mhz
VDDC: 0.950V

What they should be:

GPU Core Clock: 850mhz
Memory Clock: 1200mhz
VDDC: 1.200V

EDIT: I fixed the voltage with Sapphire Trixx, but I still can't get the two clocks back to normal. I've tried AMD VISION Control Center, didn't do a thing. Trixx says the clocks are at the levels they're supposed to be but GPU-Z says otherwise.

Final EDIT: Looks like the problem was the voltage level itself. D3 No longer crashes. Will Lock this thread.