File not found error after kernel upgrade..

[attila_66]

Hello,

I upgraded my kernel 2.6.27-5 at grub screen ehen I choose newest kernel I get

File not found

Error.
I checked my /boot directory.
The files mentioned are there but no boot.
I start my computer still with 2.6.27-4

Same problem happned with kernel 2,6,27,6

Any ideas??