Windows Explorer Error, Dr. Watson Postmortem Debugger

Hi, I've had this problem for almost a week, and I've tried all the different spyware scans and virus removal tools I've used in the past, and nothing has fixed the problem, so I need help. It isn't a debilitating problem, because I can work around it, but it is a major pain.

Here's the problem. It seems that whenever I try to play most video files, media player has an error that requires it to close, and shortly after windows explorer has an error that requires it to close. Whenever I open a folder with video files that are in thumbnail mode, windows explorer has an error. Whenever I right-click on the files to open in another program or change properties, windows explorer gives me the error "Data Execution Prevention: To help protect your computer, Windows has closed this program. Windows Explorer." I am still able to play the files and change the properties, but the error keeps coming up, and causes the desktop to refresh, etc. This error also occurs whenever I try to access files on a disc, or my external hard-drive. This error never happens for anything except video files. Anything else (audio, text, exe) work fine. Also, twice, the Dr. Watson Postmortem Debugger error has come up, which causes the computer to lock up entirely. I tried researching the problem, and it seemed that the only thing that causes the Dr. Watson error is the Acebot trojan, and although some of the symptoms seemed to coincide with the description, I don't think it is the problem because the error only came up twice, probably due to the other errors, and windows just doing what it does best, messing up. I have done all the scans that I have used in the past to fix problems, and also tried many new ones based on other forums I have read, but I have run out of sources and I really need an "expert" opinion.

I have scanned with the following programs:

Spybot S&D: Found the usual spyware I always get just from normal web-surfing, and one suspicious win32 file which it got rid of, but the problem didn't stop.

Ad-Aware SE: Just found the usual tracking cookies, nothing special

Norton Anti-virus: No problems found

AVG Anti-Virus: No problems found

Trojan Hunter: No problems found

Panda Activescan: No Problems found

Trend-Micro Housecall: Minor spyware found and fixed

RegScrubXP: 147 problems that were fixed, still didn't fix the original problem.

AboutBuster: Found a few errors that were fixed (Log Attached)

Hijack This: Attached is my latest log, and I would really appreciate someone taking a look at it and hopefully find the solution to this problem (without resorting to re-installing windows) Thanks. Major Geeks has helped me in the past, hopefully it will help me again.

 

I would like to sincerely thank you for the reply, and I would also like to say the the problem is solved Thanks to you I was able to safely determine that the problem was not due to malware, it was simply a system problem. And logically, system problems should be able to be solved by using a system restore point a day or 2 before the problem started. I did it, and it is working fine. I'd like to thank you again. If nothing else, I now have new additions to my toolbox of malware removal programs.

 

Oh yes, I did uninstall Norton as you suggested. Thanks again.