I think my Inspiron 1501 is dead. It starts up normally, then it shows me the "Windows failed to start" screen. I've so far tried starting normally, starting with the last known good configuration, and safe mode, all with the same results. It displays a black screen for a few minutes after this, finally flashing the BSoD and rebooting, after which the whole thing happens again in an endless loop. I can't find my Vista disk, so what should I do? Should I just throw it away, or can it be fixed?