Maybe Noton is becomming a problem like McAfee is....Or it's got something to do with Windows defender ???
I reckon you try playing around with the security you have at the moment, the answer may lay in there....
If you do find out what it is please let us know so we can help others...
Some recommended freebie AV's and Spyware Apps....
http://www.gnutellaforums.com/showpo...24&postcount=2