I was curious if anyone could give me a heads up on this. I have a rig that was mining on middlecoin for the past couple days and when i woke this morning the pc was frozen.

This isn't typical so I restarted it and hooked back up to middlecoin and it happened again. The next time I restared I hooked up to a different pool and it hasn't frozen, is there possibly something going on with the pool to cause this? It freaked me out a bit.
I noticed that too. I have two rigs - Win7 and BAMT. Both started having issues with cgminer freezing once I switched to middlecoin (never happened with direct LTC mining). Cgminer would freeze once a day either on one of the boxes or on both at the same time (that's why I doubt the issue is caused by some hardware problems). I tried running my Win7 box without OCing, but the cgminer froze last night nevertheless.