no, definetely not!
I have to add, that i have written an own function to rotate the edges. But this costs too much performance. perhaps the function of acknex is faster than mine.

[EDIT]
No, it is not!
I just build as much cubes as i could build with the acknex-rotate-function and compared the framerate with the framerate by using my function. The result: mine is faster.

Nevertheless I want to know, where the problem is.

I'd just begun using Gamestudio. Sometimes the manual hides important informations (or it is written somewhere where a newbie would not search for).