i downloaded some neat add-ons and i wanted to test them out, i went to bedroom and the map was just...well... whack (

) i moved my screen and just there were lights in the wrong places (lights on the walls ftw?) and when i looked at the "we can do it" picture and turned the picture went along with it. i thought it was just a problom with the map or default stuff so i went to a non-default map, the backyard. the only thing i saw was 2 fence pieces cut off the sandbox and the grass texture...no slide or other fence. i figured "that's it. this isn't working" and so i came here for help. any suggestions plz?