Mental ray option gone
 

My mental ray option is gone. But the Mayatomr.mll is checked :s.

Greetings Brecht

Unload it and reload it. Pay attention to the script edtor for any warnings or errors... Post them so we can assist further.

Error: Plug-in, "Mayatomr", cannot be unloaded because it defines a MPxData derived type that is still in use.

OK, works again

OK, wonder what that was all about then, Mayatomr should be able to be loaded and unloaded at will, unless maya has locked it out (sometimes happen). Best bet relaunch Maya or reboot ur PC.

I did relaunch it, I thought that was normally necessary.