Open File Window while playing

[Cilerba]

I've seen a few other threads like these but I can't seem to fix this problem. Whenever I'm playing a game, and I use Command + Tab to switch to a different application, I get an Open File window and when I click cancel it says "Invalid File!"

Any idea how I'd fix this?

[skid]

This thread might help: http://forums.dolphin-emu.org/showthread.php?tid=23741

[Fyaskö]

I have dedicated volume keys on my Logitech illuminated keyboard and pressing them to change volume had the same effect until I enabled "Render to main window" in graphics under "other". It is a personal preference for me but it does do the trick as well as personalizing hotkeys.