Tony Klein just answered a similar message, and I agree with him. It's a
parasite.
This type of error is often spyware related.
Do the following:
Download Spybot - Search & Destroy:
http://tomcoyote.org/SPYBOT/
It detects and removes all kinds of spyware, dialers, hijackers, and
related nasties.
After installing, press Online, and search for, put a check mark at, and
install all updates.
Now close all browser windows, hit 'Check for Problems', and have SpyBot
remove all it finds.
When you've done all that, restart your computer, test your system, and see
whether your problem is
gone.
If it isn't, go to
http://tomcoyote.org/hjt/ , and download Hijack This.
Unzip, doubleclick HijackThis.exe, and hit "Scan".
When the scan is finished, the "Scan" button will change into a "Save
Log" button.
Press that, and save the log somewhere
Next, go to
http://www.spywareinfo.com/forums/
Sign in, go to the appropriate section, press "new topic", explain your
problem, and copy and
paste the contents of the Hijack This log into your new message. You'll get
expert assistance in
dealing with your problem.