Mouse, I am sorry to hear that. I looked up line 3186, and all it is doing is loading the first alien object. Here it is:
3186: load object "media\alien1.x", 21
Now how could it not load the object on your computer, but it did on other people's computer? That's a mystery.
I am really sorry that it didn't work on your computer. I really wanted your input, because I owe the game's clarity to you, because of your post about how to use a ",1" at the end of load image. That turned my game from a blurry mess to a clear game!
My game uses normal mode Windowed mode - no exclusive, no anything else, just normal mode. This may sound strange, but I found that I get similar messages like "cannot load object" if I bring up another program and then go back to my game. It's almost as if my DarkBasic program totally lost track of the file or something weird like that when it loses the focus. I truly can't explain it. All I can sugguest is maybe a reboot and then try again? The alien object really is there, and it should be able to load it.