Well if you uninstalled and reinstalled it some times, then obviously it's not IE its self. It's something else you have done that's clashing with it. Try disableing everything
A virus scan that I love is the K one.. let me google it
LOL, don't know why I can't remember it. I put something weird in google and it still came up.
Kaspersky virus scan
Run the online one.. and if there is something just run the 30 day trial. I know you have AVG 8, but so did I. I ran Kasper and cought 4 viruses and downloaded the trial while I started running avg. I thought I would let AVG finish and it ended up catching them at the very end (I love quad core.. no lag!! Ever!!) But just incase.. can run in safe mode also. I would think it would be spyware doing it or something.
Let me watch the video again
Here are your geeksquad choices:
Just kidding lol