Is anyone else having difficulties with this setup? I keep getting stuck notes. Initially, I thought it was my Virus Kb, but then I realised that the problem existed when I was using the piano roll keyboard in the matrix editor too. If I play notes too rapidly, it appears that the Note-off command gets forgotten! I'm sure that I didn't have this problem before - could it be something I've done in Logic? I'm pretty sure that I have the latest AMT8 driver installed too - how can I verify this? Could the Core Midi drivers for my RME Multiface be causing this? Many thanks for any help.