Thank you so much for making this!!
Finally we have a true port with an integrated GUI for Snes9x. There are some things I would like to get fixed though. The switching to fullscreen when using a different resolution wasn't so smooth for me, and when switching back, the whole system froze completely and I had to hard reset. Maybe it's already fixed, it happened in version 14. Another thing was when I temporarily didn't have OpenGL. As far as I know, OpenGL rendering is optional, but the emulator wouldn't start when I didn't have it available (I don't remember the exact error message but I know lack of OpenGL was the cause for not starting.). If the emulator could just disable OpenGL rendering while OpenGL is not available, would be great.
My OS (If it matters) is Ubuntu Hardy 8.04.
The prebuilt binary uses gtkglext. If it's compiled with gtkglext, it'll need the required libraries. This is how linking works, unfortunately. I noticed a couple other spots that could be the issue, and they'll be fixed in the next release.
I'm aware of the "system freeze" issue. It doesn't actually freeze for me, but it that seems some element of the GNOME desktop has an issue when it's resized back to normal size that causes it to take a large amount of time. If it completely freezes, however, that bumps up the priority on my bug list.