Have you had a message via MSN :
tell me is this really you ? http://photogallery.gigacities.net/viewimage.php?
It's a virus which seems to be not detected and spreading very rapidly.. anyway to remove it.
close down messenger to stop any more distributions... Then
Go to start --> run -->
Look for either an entry that has a data value of 'msn.com'
delete that entry.
reboot laptop /pc
once back in windows
go to start --> run
attrib -r -h -s msn.com