I see from your post that you're using both a 64 bit operating system and a 32 bit operating system.
Unfortunately, the tools we use to analyze and remove infections do not work properly on a 64 bit operating system, and their results cannot be relied upon. Because of this, it is almost impossible for us to correctly diagnose problems, and the fixes we might offer could potentially do as much damage to your computer as any infection you might have. For these reasons, we do not
at this time offer support for 64 bit operating systems. We are sorry that we are currently unable to assist you.
However, as you are not certain that your issue is a malware issue, you may want to try a troubleshooting forum. The following sites have help sections for non-malware related problems, e.g., software and/or hardware problems:
http://forums.whatthetech.com/forums.html
http://www.techsupportforum.com
For Dell computers, try:
http://en.community.dell.com/?~ck=ln&lnki=0&nav=true
We are sorry that we are unable to help at this time and wish you the best of luck in finding a solution to your problem.
As this issue involves a 64 bit system, and therefore falls outside the scope of this forum, this topic is now closed.