>Hi,
> Be aware that AVG is deleting user32.dll by mistake. See http://www.crn.com.au/News/88773,avg-update-deletes-critical-windows-file.aspx

Granted, it doesn't affect most of us:

"The problem only affects users of the Dutch, French, Italian, Portuguese, and Spanish language versions of Windows XP, AVG said in a statement released late today."