can anybody say what is happening?
No. As KC would say, don't make us play 20 questions. It's getting to be a tiring trend that people post threads expecting everyone to guess their computer stats, windows version, all the circumstances surrounding their problem, etc. We aren't mind readers; if you want us to help, at least put a little effort of your own into providing details when you post.
I'll get you started.
Did you restart your computer?
Did you check to make sure you have available memory?
Did you try increasing the size of the page file?
Did you try shutting all other programs?
Did you check this with other Game Maker games that you made?
Did you check this with any
other Game Maker game?
Does this happen with any game/program on your computer or just those made by Game Maker?
Did you search the forum for people with similar problems who got theirs fixed?
Did you try running the "problem games" on another computer?
Did you update your computer's drivers?
What else should we know?