My friend gave me his Presario F700 a few months back because it barely worked. I have done basic maintenance on the machine and it has been working alright up until a few days ago when it began to over heat often and the fan wasn't running well. I opened it up and cleaned the fan. When I closed it up and turned the laptop on, the screen wouldn't come on. I have checked multiple times to make sure I have put everything back into place properly, a few screws seem to fit tighter now, but other then that all cables are in place. I have tried hooking a monitor up to it as well and no signal makes it out. Also when I start it up it is really quiet, so I doubt the laptop is actually booting up, but the power light is on. I hate HP and this [bleep] machine, it has been nothing but trouble since I got it, and from what I have read it is like that for most people. I would toss it, but I can not afford a new one. If anyone has any tips on to what I could try please let me know. Thank you for your time and sorry for the long post.