You should receive a "stop" message on the BSOD, similar to:
"STOP 0x000000E2 (00000000, 00000000, 00000000, 00000000)"
The first set of HEX number will vary as to the cause of the error, so do a search on google for:
windows 2000 "stop 0x00000000"
Where the 0x00000000 is replaced by the actual number that you are getting. You can usually narrow the problem down to hardware or a corrupt file.