Can't boot my computer anymore!

[Andrew]

Hello,

 

I have a dual boot system with Win98SE and RH9. I have had Grub as the boot loader for a long time now and have no problems.

 

Now all of the sudden my computer boots up and right after the POST screen I get the Grub prompt instead of the usual bluen screen where I select Linux or DOS. I hit tab to look at the commands, but I have no idea what to do. How can I fix the boot loader without reformatting or reinstalling either OS?

 

Thanks,

Andrew