I can give on that is, maybe. The video output is almost certainly from the same supply as the screen so there is a good chance that an external monitor will be blank. However, if the problem is the screen, then the monitor will probably work.
What can I say? Plug it in and find out.
Remind me again, how old is this iBook?
P
Well, its me again. I reformatted the HD and everything was working hunky-dory when the display decided not to display. It started to get lines going across it, fading, and then a black out. I believe this is logic board that I read has caused alot of problems. I'll have to call Apple on this as soon as I can. Question: Will the external display port work normally with a monitor or is that blacked out too. I have the cable adapter at another location right now so I'd thought I'd ask for the benefit of anyone else having the same problem. This ibook is starting to leave a bad taste in my mouth.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic