thanks for the quick reply! but now i have another problem in addition to the old one -.- now mental ray doesn't want to render the scene at all with batch render... here is the render log: Starting "C:\Program Files\Autodesk\Maya2011\bin\mayabatch.exe" Warning: line 1: Unrecognized node type for node 'ruinsSolver1'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'ruinsBombField1'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'mentalrayItemsList'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'mentalrayGlobals'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'miDefaultOptions'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'miDefaultFramebuffer'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'miContourPreset'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'Draft'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'DraftMotionBlur'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'DraftRapidMotion'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'Preview'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'PreviewMotionblur'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'PreviewRapidMotion'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'PreviewCaustics'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'PreviewGlobalIllum'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'PreviewFinalGather'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'Production'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'ProductionMotionblur'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'ProductionRapidMotion'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'ProductionFineTrace'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'ProductionRapidFur'; preserving node information during this session. Warning: line 1: Unrecognized node type for node 'ProductionRapidHair'; preserving node information during this session. File read in 2 seconds. Result: D:/Dokumente und Einstellungen/user/Eigene Dateien/maya/projects/Shatter/scenes/00_rigid_Anim_workin__4520.mb Error: The renderer mentalRay is not registered yet. Error: Scene D:/Dokumente und Einstellungen/user/Eigene Dateien/maya/projects/Shatter/scenes/00_rigid_Anim_workin__4520.mb failed to render. // Maya exited with status 210 don't understand why this happens now, cause yesterday it rendered...at least not what i wanted but hey :-/