No probs, just bare that in mind for the future, you can use absolutely any emulator you want. However if its not in that dropdown list then Launchbox wont know what system the emulator actually emulates, so you just need to go to that tab and type it in, and what you type there should match exactly what you have called the system in Launchbox, otherwise again it wont know what system to use it for if you system is named differently.