PC won't shut down
I dont know which I dislike the most: Norton or vista.. Get rid of both. Windows 7 is awesome and I havn't used antivirus software in years. Norton is like a club foot to the computer, slowing it down.
Get win 7 make an image backup and do 'Altered files' back up to a hard drive after every session, it takes minutes to perform. I use 'free file sync'. Im sure a few mins a day of backing up is faster than working on a machine that is slowed down with Norton. If you really want an anti Virus program, Mcafee seems to be more efficiant with your system resources..