I would recommend that since you can get to the bios, press F8 a few times when you turn on your pc to get into safe mode and see if you can figure out from there what that piece of s*@# software did to your computer. If you can't figure it out from there, disable anything associatted with Norton from msconfig.exe in safe mode and try to get into windows normally. If you can get into windows that way, uninstall Norton from there because I don't think safe mode will allow you to uninstall Norton from there. Then after all that, reinstall Norton (why would you?) Also if you can get into windows normally and you uninstall Norton, make sure you go through your computer and delete everything Norton left behind. That is assuming if you can/did everything I told you.) Believe me, I know a little about Norton because how else would I be able to get buy Norton's parental controls otherwise? Oh and if you can't get to safe mode and you follow someone else's advice to get it to work, disregard what I just told you because it will cause you a few headaches trying to uninstall Norton.
AMD 3200+ sckt 939
1 gig of corsair value ram
250 gig sata150 WD hard drive
Dynex 5.1 sound card
Evga 6600 256mb Pci-E video card