What do you find if you scan your machine with Adaware, Spybot, Stinger and Housecall?
http://forums.majorgeeks.com/showthread.php?t=35407
And you neglected the forum tip, so I can only guess the machine has uninvited guests.
Bob
I have been using wireless for about a year but recently my computer will completely freeze after 10 or 15 minutes on line. No problem whatsoever with a hard connection. I am using a 2.4 FHz wireless cardbus adapter (DWL-G650) from D-Link. Should I try another card? Have some of my internet settings changed? Any help you can provide would be appreciated. This happens at home and at airports so I do not think it is a router problem.

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