Thank you for your post.
The runtime solution should work on two different machines running the same operating system. You'll need to determine what is different about that second machine. That is, does it have enough memory? Are any other applications loaded? What Startup Items are there?
It may be minimizing the runtime window. Try running it again and then click and hold the dock icon to see if it displays a small window icon just above the dock. If so drag the mouse to this window and unclick to open it.