Bought my wife an HP laptop with Vista a couple of months ago. Everything was fine until I loaded AVG on it. Everything started freezing and I couldn't open up things like firefox, control panel, etc.
I was hoping it was something other than AVG, but I uninstalled it and everything was fine. I re-loaded it and everything started freezing again. Uninstalled it and everything is fine again.
It's too bad because AVG is my favorite security package. I use it on my laptop with XP and I love it.