I don't have Poser 5 handy, so I'm going to do this from memory. Hopefully someone will fix any gaps I may leave.... 1. Click the material tab -you probably knew that :0) 2. Click on the object list twistie (that's the triangle next to the word object in the top left of the material window). 3. Select Background <<<- relying on memory here, maybe another word that means Background. 4. Now you should see the node (that's a smaller window within the material window) that represents the background picture. 5. You can either modify the node so it shows no picture or delete it. If you can't see the node, check it's not outside the window by using the scroll bars. It's just like MS Windows but the graphics are different. If you still can't find the node, work your way through every material in every object till you find the culprit node and amend/delete it. I used to get a similar problem (frequently) in Poser 4 and the only way to fix it was to manually edit the PZ3 file. Good luck & let us know what happens.