I've just had to switch to Firefox on my dad's computer.
Was over here to have some peace and quiet and use his machine for some computer based accountancy exam revision and the thing just would not work. Managed to get Kapersky's Anti-Virus on there and found 96 different viruses. After killing them and deleting alot of files in the process, IE no longer works too well, so I checked out Firefox - works like a charm.
Used Webroot's Spy Sweeper from a magazine coverdisk to kill the spyware. Looking healthier now.
Right, back to work.