Maybe not related, but when I just visited a Microsoft support page located at https://www.microsoft.com/security/scanner/en-us/default.aspx, the page was all screwed up and flashing/moving, etc. This is the first website that has done something weird, do you think that is a symptom of some kind of infection? I took a screen capture video of it and uploaded to tinypic, hope that works (never used tinypic before and I always disable flash so I actually can’t see the video myself): http://tinypic.com/r/sz98ra/8