I have 4 func_door_rotating doors in my map and they eac do something wierd. 2 fly across the map, 1 turns sideways from the middle, and one doesn't open at all. I have no idea what it is. I just made a empty map with just thedoor and it works.

You have remembered to put in a origin brush on each door?

no, I didn't know you had to. I thought it was just like func_door. I'll go look for some tutorials. :)

u need to have a brush with the ORIGIN texture on it, this brush goes at the point in which the door rotates, u need to tie both that brush and the door to the same func_door_rotating entity.