Mental Ray globals have stoped coming up
 

For some reason when I switch to render with mental ray the maya render globals keep coming up instead of the mental ray globals.

It only started today. Has anyone got any ideas how i can get them back? :(

Nevermind its sorted

OK got the globals back up but now i get the message:

Error: Object's name is not unique: MentalRayRenderRegion.

Now although it's set to render using mental ray and the globals are set up correctly it always renders in maya!