Repeated Firewall App Permission Dialog

Hello.

I think I've noticed this tendency in the past, but not in awhile. It's recently cropped back up again. I have one application in particular (XBMC) that, no matter how many times I add it, remove it, re-add it, whatever, to the Firewall access permission list in the Security prefs pane...the "Do you want the [application] to accept incoming network connections" dialog ALWAYS pops up when I start the application? This would be only a minor nuisance except I'm using the system as a mouse-less HTPC, so actually getting rid of the dialog is a bit of a pain in the butt .

Any ideas how to fix this? Obviously turning the Firewall off is not a particularly good idea.

It's true that Macs ship with the firewall disabled, and I've heard that this is a frequent issue with iTunes as well. Seems insane to me to run around the Internet without a firewall, but I'm not quite an expert on the matter.