KG, sounds like spyware or malware to me.
You can view Norton's log by opening the log file located (usually) in your C: drive Program Files\Norton Antivirus folder. Usually named AVVirus.log.
If Norton is still alive, you may not be able to open this file - just highlight it select EDIT > Copy then EDIT > Paste and open the newly made copy.
There is some gibberish in here, but also the Virus names in plain English. Look at the bottom of the list.
I would then goto Netscape.com and download and install the latest version of this free browser (or FireFox or Opera) - use the alternate browser to surf where you want.
Update and run your Anti-Spyware APP if you have. If you don't have this goto Lavasoft.com and choose Ad-Aware Personal (it's free) and run this
after updating. Alternatively, you can goto Microsoft.com/spyware and
download the free (beta 2) Windows Defender anti-spyware app.
Good Luck !