Frozen Screen

[blue2]

Hi

I am trying to start my computer and it is frozen on the Dell start up screen. I have tried F2 and F12 as directed on the screen and nothing is happening. I'm in the library asking this and would like not to have to get a professional out to fix it, costing £60 an hour.

Thanks

[tamborine]

Keep pressing F8 as it boots up & then into 'safe mode'.