I'm also having a problem that sounds like yours. It never used to happen, and it only started happening after the store opened. I would be playing in game and then all of a sudden it would freeze. I would be on ventrilo and I could still hear people talking, and they could still hear me. My ctr+alt+delete doesnt work. I'm forced to just restart my computer. Then when i do restart my computer, sometimes LOL starts up with an error. I've been experiencing many problems, all of which have started happening in the last 2 days. Here is a copy of my DxDiag, please help!