Hi Herbert,
Glad you have the mod wheel working OK. I didn't have a problem with that as far as volume is concerned in Composer. I think Mark will get the problem solved. I guess a lot of people used GPO for the instrument sounds without getting too involved in the effects. I never really used the vibrato, for instance, in most of my work. But since I found how to use it in Composer, it became more important to me. I haven't tried experimenting yet with things like shakes and growls, etc. but that could become fun if those effects are usable with GPO and JaBB.

Cheers,
Fred