Boot off the install DVD and select to repair the installed system from the boot menu and do expert options and install a new bootloader. Here’s the full dope on that:
Insert Suse’s installation CD/DVD and reboot the computer. On the boot screen choose to “Repair Installed System”. Wait for three choices and select “Expert Tools”. Then click option “Install New Boot Loader”. Select the partition where you installed Suse (if asked). You’ll get the Grub GUI setup screen. Check under the Tab “Boot Loader Installation” that the checkmark is in “Boot from Master Boot Record” and remove any other checkmarks. Click “Finish”. Wait for message “The boot loader was installed successfully”. Click OK → Next → Finish. Ignore any error messages and reboot.