I have no sound in RO O_O

[Aqualys]

First of all, make sure you have the BGMs in your BGM folder. I've seen people ask about this, only to realize they didn't have BGMs at all for some odd reason.

Other than that, check if you have a file called "mp3dec.asi" in your RO folder. It's the file that is required for the BGMs to play. If you don't have it, you can always try to google it to download it, or something.