Blechhh! Help!

I have a virus on my computer that Norton can't seem to fix... it says it's a backdoor.trojan and I've tried all kinds of things via the Norton/Symantec site but can't seem to get rid of it. I'm so hopeless with all this stuff... *cries*

The file name is xlibgfl254.dll

Does anyone know if it's safe for me to just delete this file and whether that will make it go away? I'm signing out of here now in case I'm stuffing anything up, but I'll be checking in e-m at work tomorrow morning, so will get any messages then.

Will be watching "Brokeback Mountain" again instead of writing fic... *sigh*