Didn't know if anyone else had figured this out yet, what with all the launcher replacements and modifications, but if you have the Steam version of Kingdoms and are experiencing the launcher music loop error or the mod loading problems, I found out a little solution. If you give the Launcher about 20-30 seconds, it should give you an 'Update Timed Out' message. After you click 'ok' to that, you can launch any mod, including vanilla Kingdoms ones and Third Age if you've renamed it, without any error. The launcher will close upon starting, so no more alt-tabbing to end it or using replacements. Again, if this has been posted before, my apologies, but I've seen a lot of people struggle with this issue, and I hope this helps the people who don't know.