here is what i did..i removed the cmos battery and satrted my computer..
it gave a warning cmos battery failure, checksum failure and another failure..i restarted the pc and pressed f2 to enter bios setup. pressed the resart button..the pc passed the bios screen and back to the same screen saying "error:no such partition"
i rebooted the pc and enetered bios setup pressing f2..it stayed there for more than five minutes without any hang or error. ...
hope i could follow ur instructions..i tried to boot from dvd again but still got the boot failure message..