I just bought a Kt7 mobo and a 850 t-bird and got my computer all together and running after many hours of pain and suffering, but my computer would still freeze after awhile for no reason. So what I did was upgrade my bios and when I did that I rebooted the computer and now it says Checksum error, Insert system disk. I tryed to insert win 98 and winme boot disks neither one would work I tryed to get into the bios settings but nothing will work, justs keeps asking for that disk. I also tryed to reset the cmos and still won't work. PLEASE PLEASE HELP!!!