In that case, doubling down on my CrowdInspect and HijackThis suggestions. If SB+N works and normal boot doesn't, you've got something loading when you boot that's messing with it.
You could also use msconfig to set up a clean boot (disables all non-essential on-startup programs), and see if that works. Then start reenabling them, one by one.
On the issue of AV programs, Norton is crap. Slows the machine, makes programs not work, and doesn't catch virii. It wouldn't surprise me if Norton caused the problem in the first place- not saying it did, just that it wouldn't be surprising. You might try Portableapps.com and/or Helge's Switchblade for AV program sources. PA is a framework for setting up system-independent programs (including AV) on flash drives, and Helge's is just a flash drive IT toolkit- which I know includes Malwarebytes.
I think ECS suggested the live CD as a troubleshooting method, BTW. Not necessary, but that makes it make sense.
My Unitarian Jihad Name is: Brother Atom Bomb of Courteous Debate. Get yours.
I've been writing a bit.
You could also use msconfig to set up a clean boot (disables all non-essential on-startup programs), and see if that works. Then start reenabling them, one by one.
On the issue of AV programs, Norton is crap. Slows the machine, makes programs not work, and doesn't catch virii. It wouldn't surprise me if Norton caused the problem in the first place- not saying it did, just that it wouldn't be surprising. You might try Portableapps.com and/or Helge's Switchblade for AV program sources. PA is a framework for setting up system-independent programs (including AV) on flash drives, and Helge's is just a flash drive IT toolkit- which I know includes Malwarebytes.
I think ECS suggested the live CD as a troubleshooting method, BTW. Not necessary, but that makes it make sense.
My Unitarian Jihad Name is: Brother Atom Bomb of Courteous Debate. Get yours.
I've been writing a bit.