heyas; 'caught c exception error' is just fancy programmer language for 'oops!' you get that every time there is an error, it really doesn't mean anything specific. the obj may be corrupted. possibly a bad download, or maybe an incompatible obj format? try opening the obj in something else, like 3d explorer or uvmapper. see if it is okay. if it is... hmmm... check the group names and materials, poser doesn't like spaces and special characters in them.