I feel for you. I get frustrated a LOT, by a lot of things that either don't work right or I don't understand how to work them. I used to get so frustrated with one thing and then another when trying to learn to use a DAW,... I would work for hours, get nothing done, finally just quit before I resorted to using an hammer on the computer. Then I would be bust doing other things and try again in a month or so and by this time I'd forgotten anything I might have learned the last time. Thankfully it has gotten easier I no longer have to use a Midiman Mixim 10 or a JL Cooper MIDI Sync or other things like that.
Really, I am sorry to read this. I figured that a Roland keyboard made to use with Sonar would work flawlessly with ACT. You'd think it should be as easy as plug in and click a button or several but it should be easy and it should work.
I hope you get it working. Frustration is very frustrating.
Schwartzhog seems to help sometimes, at least for me!
Julien