Mac stuck on boot screen

[Westes]

Here's the spill,

I have osx leopard.it froze up every so often and saying 'to much application memory on start up disc. I end up restarting my computer. I have over 100gigs on my hardrive. I restatted my computer and now it does not boot up. Help!!!!!!!!!!

 

[BlueRevolution]

Can you boot to your computer's restore disk? Insert the disk in the drive (while the computer is running, even if it's frozen), then restart while holding the C key until the Apple logo appears.