Well, as long as the program hasn\'t disappeared from your screen, it hasn\'t crashed. Remember, don\'t let anything disturb it. Don\'t click, alt+tab, look at task manager, let a screensaver appear, or let your computer go on standby/powersaving modes.
I\'m not saying all of those are necessary, but they are all things that could interrupt, so to be absolutely sure you have a problem, please try avoiding those first.