Klez is a real slippery little worm, isn't he?
Symantec has a removal tool for klez. It's a free download and easy to use. Even if you don't have any reason to think you have the virus, you might want to download and run it. You can get it by clicking on the following URL.
http://www.symantec.com/avcenter/venc/data...moval.tool.html
Rick