Installed FSOpen again yesterday after some time and I encountered a weird problem: Whenever I complete a mission, the speech on the briefing screen (and cutscenes) is disabled on the next one and I have to completely restart the game to get it working again. Music still works. This is while playing the regular FS2 campaign since I haven't tried any mods yet.
I assume I have the latest version of everything since I did a fresh install yesterday and selected the "download everything" option. Oh, and I'm using the latest mediaVPs.