Since this is now a Fallout 2 thread, I highly recommend that everyone still playing this installs the latest unofficial Seraph's patch. It really does work and fixes a ton of bugs. The bad thing is, you have to start the game from the beginning 'cause the old savegames will not work.
Link to the file:
http://www.teamx.ru/cgi-bin/load.cgi...raph110305.rar
Changelog:
http://www.teamx.ru/eng/files/FO2Patch104.txt