Not yet. Still have to give it some time though. It showed up late last night, and wasn't as bad as usual. So maybe that's a good sign? I don't know, I'd expect it to be resolved completely rather than just toned down, if I actually did something that would fix it.
I'll wait and see if it's alright tonight. I've also been checking SpeedFan out every once in a while. After's it been running for a bit, GPU, Core and Temp1 all raise to a point where the 'fire' icon appears, at around 59C. Maybe overheating does have something to do with it, after it's been actively running for a while.