i upgraded my HD to a bigger drive and tried installing OS X 10.1 by pressing "c" while it boots but to no avail nothing seems to happen. all i see is the folder with the "?" and smiley face on the other side that blinks. Please help me out thanks

Is the disc scratched? Do you have the OS 9 disc, try those
and see if they work.

You could also try holding down the Option ket to see if it
can find the disc.

Try particioning the hard drive into 2 parts the 1st 1/2 must be under 8 Gigs install your system there also anything larger than 120 Gigs won't be recognized

thanks for the reply guys,
pumpnethel, how do i patition my hd when i don't have a working OS to work on? any suggestions? thanks

That's just it, you have to be able to boot from an installation
CD before you can partition the drive. That's why his
suggestion is not a solution to you problem, there is no
problem with having OS X on a less than 8G partition as you
don't having anything installed.

I'm guessing there is something wrong with the install CD
you have, do you have another install disc you can try?

I'm having the same EXACT problem. I can install WINDOWS on my MACBOOK PRO, But I can't Boot from the Tiger OSX install DVD. PLEASE HELP!!! I've had this problem for 2 Months now!!!

Liz, have you tried booting while holding down the option
key?

If you stick the DVD in while it's already running does the
MacBook Pro recognize and read the DVD?

When I hold down the option key while booting, the only drive option that comes up is the "windows xp" partition. Nothing else. It doesn't recognize the Tiger OS X DVD.
I've even installed 'Transmac' and 'Macdrive' via external floppy drive in hopes to format part of the hard drive.Still no luck.

I'm guessing that if your Mac isn't recognizing the disc, the
disc is possibly bad. Does it have any visible scratches on it?
or smudges? Do you know anybody with a different Tiger
disc you could borrow? or somebody with a Mac that you
could try your disc in to prove that the disc is good/bad?

You can't get the machine to boot into the OS X installed on
the hard drive?

Are The jumper pins set right on the new Hard Drive?

Tiger is BRAND NEW out of the box from CompUSA. And nobody that I know knows anything about a MAC. I am determined this has to be something easily resolved.
Jumper pins? Please elaborate on that because it's very possible they are not.
* And thank so much everyone for the quick responses!

Liz, I think the question about jumper pins was in response
to the original poster's question.

"Tiger is brand new out of the box from CompUSA"? Your
MacBook Pro should have come with Tiger preloaded and it's
own copy of it, why did you buy a Tiger install disc from
CompUSA? Hows old is the MacBook Pro? Did you install
BootCamp and Windows XP or did someone else? Did they
have problems during that installation?

I purchase my MBP in April '06, My case with all of my software and peripherals and work was stolen from the gym. - I bought a new battery charger and had no problems until the EFI FIRMWARE UPDATE that was not successful. So, after reading many forums I still had nothing but a grey screen with the spinning pinwheel. So I bought a brand new TIGER OS X. No luck. I could only start up in single user mode and verbose. No luck. So then I bought a NEW HARD DRIVE assuming my old one was fried which brings me here.

The Tiger disc you bought from CompUSA won't work on the
Intel Macs. Call Apple for a replacement Tiger disc for your
machine.