Problem:
If I start a new project and set up an Audio Instrument - say the EXSP24 Grand Piano - I can play using the Oxygen8 and there is no latency as I am playing. However once I record the melody, when it it plays back, I am missing about every 3rd note, it sounds awful!

Also if I open the Tutorial and try to play the ES1 that's set-up there the Oxygen8 does not register any IN or OUT signals in the Transport window

Tried:
Audio Midi Set-up changing from Using Built in Audio to using the ULN2 but makes no difference

Gear:
Powerbook G4 1.5 Ghz 1.5gb Ram OSX 10.4.8
Logic Express 7.2.0
Midiman Oxygen8 (latest 3.2.2drivers) -Connected to Powerbook via USB
Metric Halo I/O ULN2 Mio Console 2.2f15 - Connected to Powerbook via FW

Many thanks for any suggestions

What do you mean?

Is it the audio recording or the midi recording you replay that is missing notes?

Perhaps I did not put that well. It sounds like I am missing notes, but the score looks OK, it has recorded the notes correctly. However any moderately fast piece of playing on the piano ends up with a mess of sound on playback, so I will hear the first few notes clearly then a gap, where there was no gap, then a series of faster notes all rolling into each other.
I'm not really sure how to describe it properly. It just sound nothing like what I have played. Yet as I am playing it it sounds OK.
Do you have any idea?

I'm stuck, there should be no difference between you playing directly or the MIDI playback of the score. In the end, the CPU should be solicited the same way by the ESX24… so either should have missing notes or none.

Now it reminds some very old problem a guy encountered here though I don't remember the cure, it must be around (it was in Logic too if I remember well but years ago…).

Have you tried with a lighter sample bank?

I'm wondering if there might be too much continuous controller information, which could be overloading things, especially note off info. This could cause your problem.

Have a look at a recorded sequence in the Event List. If there is a stack of info other than simple note data, try highlighting one piece, going to Edit > Select similar events and then delete, Repeat as necessary so that you're left with only note data.

If this works, you may need to examine what data is being transmitted by your keyboard and switch off extraneous data.

I'm really not sure if this is the issue, but its worth a punt.