PoesRaven,
it may be that the bridge map file is corrupted in the Baldurs CACHE/DATA subdirectory. If the file is in there Baldurs ][ *won't* read it from the CD and if it's corrupted you experience crashes. This is usually indicated if crashes are limited to one particular map.
First run SCANDISK and have it fix any problems, then DEFRAG your disk. Finally delete all the files from the CACHE/DATA subdirectory and restart Baldurs ][.
Good luck
Kez