Have you play around with backup PC bios after reinstalling the disk.? I once had same problem. However, resetting the bios to default during the boot fixed the issue.
From: Ara Kaloustian Sent: Tuesday, September 16, 2008 8:55 PM To: AB-Main Subject: [amibroker] OT: PC / Hard Disk Failure? My backup PC will not boot up because disk does not contain (or can not access) critical bootup records. I transfered disk to primary computer, ran chkdsk and fixed disk problems. Transfered disk back to backup PC. It booted up ONCE. Then same problem!! Does it sound like a failed disk (it's a fairly new disk) or PC is working improperly? (Interl Pentium PC) Any suggestions??? TIA ara
