CyberneticJake

:angry2: My computer starts up when it wants to :angry2:

I don't know exactly why, but if someone can help I'd appreciate it greatly. Every once and a while my computer freezes up and I am forced to power it off. Afterwards I wait 15-20 sec. and press it to come back on. Now sometimes it starts up, other times it gives me a message that says cd rom: not found; floppy drive: not found, please insert boot disc into computer....
So anyways, I shut down and it takes me sometimes three times to restart it finally. I run diagnostics on it and scan disc and checked for viruses with Norton 2002. If anyone knows what I should do, please help, even some advice would be helpful. Thank you!