I recently bought a 505, and have hooked it up to cubase 5 on my powerbook by a midi MACMAN. I have set the groovebox to slave mode, and have made cubase send start / stop messages. This has succeeded in making the 505 start and stop when cubase does, but it drops out of sync after a while, making it impossible for me to play set programmes on the 505 alongside the audio in cubase. Can anyone help me sort this, as it's frigging annoying. Cheers