Getting pop up

I'm hoping that someone here may know this answer or know where I can
start searching. I have been informed that one of the users here
continually receives a windows dialog box that is asking her to
authenticate with user, pwd, and domain to a web site of
www.6789tsrqp.com . The box appears to be a windows network dialog box
much like if you are authenticating to a network share. 

The machine itself has been reimaged. The dialog box follows the user
around to where ever she goes. We do not have roaming profiles but we do
have My docs synched. 

Has anyone come across such a thing? 

Whatever ideas you may have would be greatly appreciated. 

Philip Walley

--
NTBugtraq Editor's Note:

Want to reply to the person who sent this message? This list is configured such 
that just hitting reply is going to result in the message coming to the list, 
not to the individual who sent the message. This was done to help reduce the 
number of Out of Office messages posters received. So if you want to send a 
reply just to the poster, you'll have to copy their email address out of the 
message and place it in your TO: field.
--