Is there a way to force an application to run in the background or is there an application that will let me do this? Here's my problem: I'm importing / exporting lots of video clips. Each on has to be touched up before exporting. When they're exporting I like to play (don't laugh!) Deer Hunter Reloaded which I got via the App Store. However, if I want to go back to my video work (or anything else for that matter) on my Mac I have to quit DHR each time - Command + Tab doesn't work whilst the game is running. I know it's not that important but a solution would be truly appreciated.