Be careful. If you don't already have this fixed you should go with the pros. You have the vundo virus and it is rapidly propogating itself with various dlls all over the place. You probably should let Norton fix it if they can. You will find out if you haven't already that you cannot visit any of the boards with explanations of how to remove this virus and cannot install any protection, free, share or purcased. At some point antivirus2009 will start and say you are infected but it will not remove the virus unless you pay them, do not pay them, they are the idiots behind the virus.
If you have another pc, I would switch to it and search for vundo fix asap. Don't keep trying things and rebooting as it only gets worse.