Ya thanks so much DADT. Following your suggestions of preference setting I got few OBJs appearing in the scene. But few are not even appearing . Then I got your idea into head. I mean CALYMOR`s idea of material setting.But I think I can click on to the M tab for only those items those are coming up in the scene. For example I attached a screenshot to show that I loaded the OBJ file 'mouse running 1' and thus got the name in 1 and the material etc setting tool box for at at 2. The OBJ thats not appearing doesnt even get the name or its respective tool box on !! Thus what can you say about that !!!!