There seems to be something screwy here.
autocam off
make matrix 1,500,500,10,10
position matrix 1,0,0,0
SET MATRIX WIREFRAME ON 1
UPDATE MATRIX 1
make object box 1,25,25,50
DO
IF RIGHTKEY() THEN TURN OBJECT RIGHT 1,1
IF LEFTKEY() THEN TURN OBJECT LEFT 1,1
IF UPKEY() THEN MOVE OBJECT 1,5
IF DOWNKEY() THEN MOVE OBJECT 1,-5
x#=OBJECT POSITION X(1)
z#=OBJECT POSITION Z(1)
POSITION CAMERA 250,200,250
POINT CAMERA x#,0,z#
PRINT x#
PRINT z#
LOOP
This should make a box that you can drive around with the arrow keys - the matrix is just there to make the movement more more clear. But what happens on my system is that the object moves OK for a bit but then gets stuck in somesort of weird vibrating effect if you try and turn then move.
Another thing why isnt there a list of reported issues on the board somewhere to stop people repeatedly posting the same bugs, and why no search function - if there was one I would have searched befor posting...