Not trying to say cgminer caused this, but I had my Ubuntu machine freeze on me yesterday and that has literally never happened before... thought nothing of it at first, but now just tonight my Windows 7 machine just froze as well... that also hasn't happened, in probably a few YEARS. And they both just happen to be running 2.7.4 now.

Coincidence? Maybe..

Hard lock. Where the thing just locks at whatever it was doing and stops accepting input. Monitor continues to output video, but nothing is animated of course. Have to hold down the power button to reset. Both computers froze in the same fashion.

Again, no clue if cgminer is even capable of freezing a computer but this just seems way too coincidental to not mention.
The other thing is that they're both operating in very different environments. Both on their own electric circuit, one has an AMD card while the other nVidia, and on the Ubuntu machine cgminer is literally the only process running. I mean cgminer is the only common denominator, literally, outside of both pc's having an intel processor.
But you would think something like this would be reported already. I don't know, I'll keep an eye out.

Other than that, only other thing that's off is that when I start 2.7.4 on the 60GH machine, I get a massive log full of "pool not providing work fast enough" right at the beginning. Like 16 lines, heh. Just an aesthetic thing if anything.