--- In logic-users@yahoogroups.com, "darealbasoski" <mail@...> wrote: > might it have to do with the MCU being connected > to the fireface? I've actually found the Fireface MIDI port by far the most reliable of all the MIDI interfaces I've used with the Logic Control, running under Logic 7.1.1 on a titanium powerbook 1GHz. Unless it's a faulty unit, I doubt that's the problem. It might be worth trashing the control surfaces prefs: ~/Library/Preferences/Logic/com.apple.logic.pro.cs And perhaps the system MIDI prefs: ~/Library/Preferences/com.apple.audio.AudioMIDISetup.plist ~/Library/Preferences/ByHost/com.apple.MIDI.xxxxxxxx.plist Also check that you have only the MIDI drivers you need installed in /Library/Audio/MIDI Drivers/ Another possibility: in Logic >> Preferences >> Control Surfaces >> Preferences, there is a setting that specifies the max MIDI bandwidth the control surface can use. You could try increasing that. Otherwise, the suggestion about song complexity may apply - writing automation does use considerable CPU, and if there are large numbers of audio regions to display, Logic may just be choking when asked to write multipe tracks of automation at once. Do you have the automation visible? Try turning automation view off if so. John Pitcairn ---------------------------------------------------------------------------- - LC Xmu Logic/Mackie Control emulation & management, LC Xview software LC/MC display, Logic environments & stuff... Opus Locus - http://www.opuslocus.com ---------------------------------------------------------------------------- -