Hi all, hoping someone can help me with this! I was online earlier when suddenly my laptop started screaming about a virus being detected. My virus protection expired last week, and I hadn't got around to replacing it thanks to having no money, so in a bit of a panic, I immediately turned off my modem and then turned off the laptop. Now, however, the laptop will not start up; here's the exact sequence of events that takes place on pressing power on: Acer loading screen starts as normal. Blue 'loading' bar fills at normal speed Screen then switches to blank black screen with a flashing cursor in the top left corner Pressing most buttons produced a high pitched 'beep' sound, and the only thing that seems to do anything is Ctrl-Alt-Delete, which simply seems to reset the black screen with the flashing cursor - the screen goes black, then reverts to the erroneous screen. I can still get into my Setup Utility screen by pressing F2 during the Acer boot screen, but when it goes beyond that, none of the F buttons will work. Any suggestions? EDIT: Some more information: It's a Vista machine, Warranty expired ages ago, sadly, And I haven't opened it up yet.