There will be a file located on your c: drive that is out of place. The name changes all the time, but search by date by most recent. It more than likely will be the only file not in a folder in the c: drive. Also, check for registry keys--You should delete these files:
C:\WINDOWS\system32\xvwizard32.hta
C:\Documents and Settings\Owner\My Documents\xvwizard32.hta
And remove these from your registry:
O4 - HKLM\..\Run: [xvwiz32] C:\WINDOWS\system32\xvwizard32.hta
O4 - HKCU\..\Run: [xvwiz32] C:\Documents and Settings\Owner\My Documents\xvwizard32.hta
What is happening is theres a prog that runs upon startup(well, after) that modifies registry entries. It will constantly change yer start page until the file is no more.
Secondly, d/l and install
wmp9.0
Also, after you delete the *bad* file, run some cleanup progs. i.e. system mechanic, registry first aid, adaware, etc.
Also, when you're done, ditch Norton beacuse it is a piece of shit and d/l
AVG. This is yer new antivirus. Then go to
Trendmicro and run an online virus scan. This one is neat 'cause it finds trojans too--which is what u have.
Finally...Stop going to lame porno sites. Thats where these come from.