I'm a Mac user so I don't know how much help I'll be.
But usually when I get an error like this it's either the application needs more ram to run...if you're already familiar with this sorry, but I usually find the prefered size is always set too low for audio applications.
Or the app is corrupted and you need to re-install it.
If you're running it from within your browser you might have to increase the preferred memory of that too.
Best bet is use Quicktime. Starts up instantly and begins playing as it's loading