Are the characters on the screen readable? I had this problem too, along with the black grub screen. If they aren't - try adding vga=0x31B to your grub.conf
Matt Harrison wrote:Sorry that should read:
Thats strange, when the splashimage line was incorrect it used to just give you the menu with a black background (ie the normal menu but with splash) as you would expect.
ie the normal menu but without splash