Buffer Overrun Detected

[Jamie.Lynn]

Hey,
I need help! My computer is being retarded, for the second time this week.. Any ideas?
This is what my computer is saying, in a little box, on the desktop; I will even show you the screenshot I took of it!
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Buffer overrun detected!
Program: C:\WINDOWS\Explorer.EXE
A buffer overrun has been detected which has corrupted the program's internal state. The program cannot safely continue execution and must be terminated.
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Everytime I click OK is resets my Desktop screen, and then comes up again like 5 seconds later. Why is it doing this to me? I am about ready to throw it out the window. Anyways, here is the screenshot, any ideas?

http://i6.photobucket.com/albums/y237/WickdChk/ComputerError.jpg

[Dusty]

Sounds like malware posing as explorer.exe (note lower case exe).  Spybot S&D is reputed to be the removal tool for this.  

Suggest running maintenance SpyBot S&D, AdAware, your AV Scan etc..

Good luck

[Jamie.Lynn]

I will try that and see. Thanks