did you try spybot search and destroy? that might work and also try adaware se if you haven't... do you know where you might have gotten this from??? like what site or something...becasue i had a problem like this kinda where everytime i would open ie it would go to a site that wasn't my homepage and make new dialup connections in my network connections...i ran my avg free edition, my spybot, adaware and went to the trend micro virus scan site...it got rid of it... you may also want to try to full virus scan at pc pitstop..i haven't tried that site but it is supposed to be a really good site...i have been there before and it looks fine. and make sure that your firewall is turned on too so maybe next time you won't get this..
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billybob