[SOLVED] Setting Bank = -1 results in no playback

I want to preface my question by saying that I am by no means a MIDI or SoundFont expert. I'm simply an enduser who wants a better MIDI listening experience. :)

I'm currently composing a track in SynthFont, with two of the tracks relying on other banks (bank = 8) than the preset bank = 0. When I go into the "Edit soundfont properties" in the VirtualMIDISynth controller, I set Bank = -1 to load all banks, but this results in no playback. Setting Bank = 0 after I've opened the MIDI file in Windows Media Player gets the track to play and load the correct banks and presets.

Am I doing something wrong, or is it a minor bug in VirtualMIDISynth? I'd like to be able to just open a MIDI file and have the right banks/presets be loaded instead of doing the three-step process described above.

Thank you in advance for any responses.