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.