I just finished making a new game on my laptop, and after I transferred the file to my desktop, it starts to randomly crash. It seems that when I step on certain spots on the map, the game goes berserk and starts to flash rapidly and crash. This problem only happened on the desktop, so maybe the files corrupted? It worked on my laptop, so if you could please tell me how to fix this problem. Thanks in advance.
Depends on many things. You have to find out what is crashing. If your Desktop has a lot lower performance it could be the case, if you are using expensive texture, light mapping with more then 1024 size, or other issues.
However try lowering the settings as well. Testing the game in a wide variations will give you at least a point what to fix.