http://www.doomworld.com/idgames/index.php?id=9714 I have loaded and tested this wad and it plays great. I then loaded it in Builder and tried to create my own, but can't get the doors to slide side ways. Anyhow know what I'm doing wrong here? Here's my attempt: http://files.frashii.com/~sp00nz/Doom/-help/dfslidingdoortest.wad