Ok, tetex seems to work better for me, even if i can't use it (texlive gives an internal error)
I'm trying to install the plugin latex for foswiki since latex is available on the server... Still not working... Can't have an access to the extender.pl file to install this latex extension... So is there any activated safe mod, or something else which would be the cause of the problem ?
The available logs don't give all the informations...