ahhh, and i also get this when i load my scene..

// mental ray for Maya 5
// Warning: mental ray for Maya: couldn't find maya.rayrc in search path, trying old-style startup file //
// Error:...

I Just upgraded to MentalRay 5.0.1, and mentalray worked fine.. However as soon as i restarted (I think this is when it stopped), mentalray stopped loading. So I checked the plug-in manager and told...