I bought Norton antivirus 2005 but when i put the disc in a window opens giving me the options to install norton antivirus 2005/ Browse the cd/ view special offers/ or exit. So I click on "install" the window disappears my floppy drive buzz's and nothing happens. I have tried exploring the cd and clicking "CDSTART.EXE" file but the same thing happens as above. I also tried clicking the "NAVSETUP.EXE" file but nothing happens. I am running xp home adition.