Platinum Arts Sandbox - Free 3D Game Maker Forum

i have recently installed the program to my computer, when i load a map the screen freezes, and i can not move the map or edit the map

I would say to try it on a different computer

You may have a integrated graphics card that's not good at all, Sandbox goes strictly off a good graphics card.

You should check out the FAQ which are listed at the top of the forums. The main thing to do is update your graphics card drivers. Take care.
-mike