Hi. About 4 or 5 days ago all the games on my computer (including ones on the internet) started acting funny. All the games work fine for about 10 minutes of play or so, then they just freeze the entire computer. I end up having to restart my computer and the same thing happens again. I've tried all sorts of scans/test/etc. but nothing comes up. Can anyone tell me what could be wrong? Thanks in advance!