It is possible that you have a dead hard drive. Manufacturing faults can mean that a drive can die after a few days.
Is there a "Failsafe" option on the GRUB bootloader screen? Try selecting this, and see if you can bring up your system.
If you boot your system with a LiveCD (I don't know if Suse has a rescue CD), you can use FSCK to check your drive for errors. Never do this on a mounted partition though.