error trying to play SP JK2

[Ed1bleTal2get]

i get this error when i tried to load a game

 

"bad parameter in external weapon data 'firingforce'"

 

it was working fine before, but then i reinstalled the game and this error has been coming up whenever I try to load an old (or new) game.

[teleguy]

http://support.lucasarts.com/trg/tgd.asp?id=2466&g=120&s=4