Hi, I have been having a problem with my computer. I don't know why but often, it would just lock up on and off. It returns to normal when I close some programs. And by lock up, the computer's right-click is disabled, I can't double-click to open new text files, programs, or any other files for that matter. It becomes normal again after I close about 1 or 2 running programs on my desktop. This is really annoying. It shouldn't be a performance speed problem since I run on a 2GB RAM computer and its AMD Athlon 4000 Mhz. I don't know why this is happening but it really sucks. And those opened programs are usually the same programs I often use (Notepad, Internet Explorer, SmartFTP, AIM).