I've just gone and fired up my computer (I usually read the forums on my mobile phone, which is why I sometimes miss read them)
//
// create a quick scene
//
make object cube 1,10
position object 1,0,0,0
position camera 0,0,100
point camera 0,0,0
//
// Move cam loop
//
do
position camera camx,0,100
` this is your line of code
IF camx<1024-120 AND MOUSEX()>SCREEN WIDTH()-10 THEN INC camx, 5
loop
This is a quick test I made for your code and it works fine?
I can only suggest that your cam position is out of the range specified by the If line?
Try my code and see how you get on.
Without Music or Love the world would be a very empty place... Thank god I still have music.. --'-<@