i solved the problem, it was todo with c_move, whilst using glide, im asuming zglide, which i messed around with, but no success, so i used USE_AABB collision detection which worked fine.
but i've designed a surrounded desk, for in game, an L shape desk, but i cant move into the centre of the desk, it collides with a square, and when i insert the desk and resize it as a model, it loads the object 5x smaller then when in WED, how can i solve these problems?
thanks in advance.