OK, I'm curious. How DO you solve the problem?

Do you press F1 and everthing works OK? Do you press F2 and have to make changes in BIOS Setup to continue? Do you get stuck at this point and can't proceed?

If you're getting stuck, check that you've configured the drives correctly. Primary drive - Jumper set to 'Master', drive attached to end connector of primary IDE cable. Secondary drive - jumper set to 'Slave', drive attached to middle connector of primary IDE cable

And don't forget to change everything back over if you swap them.