Hi all, As many have discussed this, I somehow couldn't find a real solution to my problem. And again, it must be a genuine small problem which I couldn't solve.. thus I have to bug some experts here for help. Thanks in advance! Ok, that same thing again, i got delayed output sound from my MIDI keyboard on Logic Studio 9. I've just installed it 2 days ago and recorded 2 songs without any problem. Today, not a good day, I launched LS9 and have this delayed sound problem. Its almost unplayable now. Tools: Macbook 2ghz, 4gb ram old korg x3 workstation via midi-usb As I said earlier i had totally no problem at all, until today. Being un-expert in this, i don't remmber adjusting anything unknown to me in LS9 settings, preferences, etc. I left it as it was first installed as I had no problem, until today. Plugins installed: garagaband jampack 3 and 4 I did exactly what have been recommended, like turning on low latency, io buffer adjusted, etc. but still i'm having this problem. rebooted my macbook like a million times after every adjustment to ensure it took effect, still it didnt solve the problem. so pleease helppppppp! :( i have a love song to write to my girlfriend.. :( or else, she'll find a new boyfriend... you wouldn't want her to ditch me right???? thx guys!!!!