I installed AVG 8 in my WinXP, and from that moment, it is a mess in my computer. I solved many issues (in particulat my Live Messenger refused to sign in) uninstalling the program, but it seems it doesn't really want to uninstall every piece, even with Ccleaner, Spybot etc... I am not good enough to go deeply in the computer. I constantly get this error in IE 0x7911e58 .... memory cannot be read. It is a dll error. Sorry I don't have the complete message and am afraid to do something to reproduce it, I can lose the rest

Could you please tell me what that means and what I can do? Thank you very much