i have ,KOBIAN-Mercury 865GVM-L, P4 2.80 GHz, 512 MB DDR, 80gb 7200 rpm hdd, 52X CDROM, 1.44 floppy, 14 inch color monitor. till now i have not installed any add-on cards, my problem is whenever i try to go to BIOS SETUP, IT HANGS. when i hit "DEL" it hangs anywhere leaving with no option other...