Grub problem

Dear all, I have installed suse pro 9.2 on my pc in which motherboard is asus p2B and I getting in starting Linux. When I switch on my pc, grub word displays and nothing then happens> I have even tried with Lilo, but I got the error after starting in form of L 99 99 ... I would be glad if you would like to help me to solve this problem. Thinking you in advance for your support