First off, Autoplay uses channels to play. MP3 doesn't play on a channel. Ashley already posted the link, but in case you missed it, here's the wiki article on XAudio2: http://apps.sourceforge.net/mediawiki/c ... io2_Object
But... even when I try "Play music," either from file or from resource, I can't get it to play :/. So I don't know what's up. It's not working for me either.
As for the menu pausing thing... you need your "On 'Enter' Key" triggers at the tops of your events, or they won't work properly. Since there are other events above them, "On 'Enter' Key" triggers as a new press each time the conditions above it are reached. For example:
+On Enter Key Pressed
If you hold down the Enter key just once, it will register as having a new keypress every 5 milliseconds.
Another thing to watch out for:
-> Foo is Goo
-> Goo is Foo[/code:32byczfv]
You will never get Goo, because it's changing right back to Foo. You need more detailed conditions so you're not canceling them out by accident.