export whit colision give eror

[florian_1034]

i have a modify car (i put some big legs at her) ,but when i export in dff (after i selected all) give tha eror

"--uneble to convert:Undefinitet type:Integer",why? with an dff colision selected is going but if i make my colision with col OI give that .I use GMax with KAMS script,i try 3D studio max 9 but dont't work on my pc for unknow reason.

what can i do ,any idea is good so please help me!!!!!