Ok guys, I have some annoying problem with Windows XP. Most of the programs running on my machine, such as Firefox, MSN Messenger or BitComet, etc will freeze altogether. I thought this was a video card related driver problem so I updated it but the problem is still persisting. When the program freezes, I cannot open Task Manager as well, when I press CTRL+ALT+DEL nothing happens. I suspect its a software related issue or maybe a driver issue, but I don't know where to begin. My computer specs is in my signature and I'm using SP2 with all the latest Windows updates. Please help me here, thanks.