If you dual boot with W98 and your computer Blue Screens with any of the following messages:

   HAL: MP_PTR invalid checksum                                 HAL: MPS MP structure not found HAL: No MPS Table Found                                 HAL: This HAL.DLL requires an MPS version 1.1 system Replace HAL.DLL                                  with the correct hal for this system The system is halting
when shutting down W98 and selecting Windows NT, but doing a cold boot works, then your BIOS is old and requires replacement.