[Slyk]

Ok, just to rehash a little..

1. you have to siderails....
2. you have rungs somewhere, mine are 16-32 units apart, doesn't matter.
3. you applied a full height common/ladder brush that overlaps the rungs by a couple units....
4. you right-clicked with the LADDER texture brush highlighted...then selected 'function/ladder'.
5. you set the angle.... how you describe it, it should be 90, but try 270 also.

6. if this doesn't help, I don't know what is wrong... actually, destroy the beast and start over just to be sure.