|What AV are you using ? Perhaps a change would solve your problem .|
Many PCs come with Norton or Mcafee pre-installed and many people don't know that programs & features or install\uninstall will not completely remove either , the proper uninstaller must be used ,
If you think well It's too late now , there are way to rid your self of the "left overs "
but the best way I have found is to reinstall and the uninstall with the correct uninstaller .
Another way is to try "runscanner" to find anything that relates to your old package and tick & fix .
So what i am saying is if you can connect with out you current AV package , change it .
I have no problems with AVG 8 free and vista's fire wall + router ,
A laptop used in public places may need a third party firewall .
No 404s this time !