I think you have to reassign all your midi devices again to the serial port you're using because of logic's new midfi interface settings window... Teddy Kumpel <<<In Song Settings > MIDI Options next to Transmit MIDI Clock, the usual pop-up allowing you to choose where to send, ...is completely screwed! It's either 'off' or a bunch of strange 'n/a 0' to 'n/a 9' prefs separated by a string of blank spaces. Anybody else getting this, or is there a preference I'm missing somewhere? Is the pop-up even meant to be there? Maybe this has become redundant since it can be set in Synchronization Settings... Have I just answered my own question? Richard Bull>>>