[htpc guy]

Did you try to run the command without XBMC in the background from command line?

You could also try to check the command that is passed to the launcher.sh. Modify your launcher.sh like this:

/usr/bin/killall -STOP xbmc.bin
echo "$@"
"$@"
/usr/bin/killall -CONT xbmc.bin

If you fall back to the console after trying to run the emu, you should see the command in the console.

I can run Mupen64plus without any problems from the console and terminal.
My terminal command: /usr/games/mupen64plus --nogui --fullscreen /home/htpc/Documents/N64_Roms/F_Zero-X.z64

XBMC still blinks for a second, looks like its going to load the emu and then goes back to full screen XBMC. I don't think the game is ever getting launched. (I don't hear any audio indicating that it opened behind XBMC). Where is this modded script supposed to output a log file to? I don't see any log files in my home directory with launcher.sh. Maybe that is my problem? I can double click on launcher.sh and Ubuntu asks if I want to run it or open it in notepad. This should be an indication that it is being recognized as a program right?

I also removed any spaces from my rom directory and filenames.
I'm also running Ubuntu 10.4 and D Beta 3

I'm at a loss. Is there a way for anyone to upload a working launcher.sh file so I can try that (is that even possible?). I need to get this working. If I launch it normally through command line I can run at 60fps. Running w/ xbmc in the background leaves me at 30fps.