Big Problem...

Sigh...we've been through this literally hundreds of times. Find your Mac OS X Install Disk, boot of it, goto Utilities-->Startup Disk and choose your internal HD and click restart.

 

Hold the mouse button down throughout the restart to force-eject a CD...

The flashing ? means that the Mac cannot find a operating system.

It may be from a number of causes, including hard drive failure or software corruption, but take it step by step. Do what Chris says. To force the machine to boot from the CD, hold the "c" key down through the boot process.

Another maintenance thing you can do is, after booting from the OSX CD, go to the "installer" menu at the top, choose "Disk Utility", select your hard drive on the left, and choose "Repair Disk"

Once you get running, have a try on the "Search" function here, and have a look at Apple.com support section. These are fundamental skills.

 

I was going to say that, but I wasn't sure if it would still work if the OS wasn't loading correctly...

 

It's an Open Firmware (EFI) command, so no OS has even to be present on the HD.

 

You have to keep the mouse button down from (re)boot until it spit sout.
This can take up to about a minute. But keep it pressed!!!!

Only the mouse button or trackpad button will do. Nothing else.

This might work too (it did on PowerPC Macs):

Boot while having the <OPTION> pressed, and you'll get the "os loader".
Once you got that, maybe the <EJECT> key will work...?

 

yes... yes it does.

 

THis doesnt look to good. Sounds like something died inside I think you are going to want to send it in to apple. Sorry.