Well, it looks to me like you're using an older version of 64th Note. The picture shows 64th Note v0.9. Try out v1.1 or v1.2 beta 1. When having a problem, it's a good idea to upgrade first, to see if that fixes it. Also, in regards to 64th Note 1.2 beta, I've been using it with no problems since it came out. If you want to listen to Gauntlet Legends, then you'll need to use 1.2 anyway. If that doesn't interest you in the least, then feel free to use 1.1.
Anyway, I'm running late. Let us know if upgrading makes a difference. Mouser X over and out.