Fedora CORE 1 kenel 2.6.1 and X
 

I've installed Fedora core 1 and after that I begun a kernel upgrade... ok till now. I compiled the new kernel i've done make modules_install... and after I boot X won't start. It won't start neither with 2.6.1 neither with the install kernel 2.4.22.
How can I fix it ?
Thank you!