Export problem

[Yann Collete]

Hello again,

I had found a new error in the 500 ones, latex tells me:
!Latex error: Bad math environment delimiter.
l. 3159 ce cas, la p^^e9nalit^^e9 varie entre \( 0 \) et \( S_{min} \)
Your command was ignored 

I have completly reinstalled teTeX-1.0 and it still doen't work.

Thanks YC