I had a power out due to a thunderstorm and after my HP m8100n PC came back up I can't USE the internet. My ISP checked my DSL modem and everthing is okay. My ISP is Pioneer (pldi.net). I can ping and return is okay with Pioneer, yahoo, google,ect. so I know I do have a connection. I can use mozilla firefox and search google and it will pull up the search page but won't go to any of the sites. The only sites that IE 7 will go to is pldi.net or hp.com and then the pages within are super slow. I use biblegateway.com ALLOT and when I tried it, it took about ten minuets but it finally pulled it up and took another ten minutes to search a bible verse. I currently use AVG 8.5 free anti virus and spybot and windows defender for spyware/ad ware. I've scanned in safe mode and spybot found cooolwebsearch something? but couldn't remove and promted to run on next start up. After start up scan didn't find anything I think. I'm using windows vista home premium sp2 and I've tried turning off third party services, start up programs, resetting IE and nothing helps. My hp didn't come with a vista cd and I really don't want to reformat from recovery partition. Can any one HELP?
Do I have a virus? Any suggestions would be appreciated.

TimIt turned out to be my ethernet card. Reinstalled the driver and I'm back on line.
Problem resolved for the time being.