Logic Express 7.1.1 stuttering audio

Audio in Logic Express 7.1.1 stutters whenever stopped in the Arrange window - looping the same short bunch of samples over and over. Clicking on an audio instrument track solves this problem. This occurrs whenever I use an external audio interface (Echo Mona) - no problems with built-in audio. This problem does not occur using Logic Pro on the same laptop with the same Echo Mona interface.
Another user on a forum described exactly the same problem but using a Maudio Audiophile 24/96. His problem also was solved by clicking on an audio instrument or using Logic Pro. It appears Logic Express has an audio driver issue.
Anyone else experienced this?
cheers Scott
Powerbook g4/1ghz/512M/ OSX 10.4.2

I have the same problem. However, opening the audio
preference panel doesn't help me...
It's only Logic Express on my Edirol DA-2496 PCI
audio interface. iTunes wirks fine with that
interface and Logic Express wiorks fine with my Sound
Sticks...
I hope somebody can help me...
Wimek
I am nor sure about your particular problem, but I have noticed that express can "stutter" when playing if you have a Audio Instrument track highlighted in the arrange page.
If you do have a Audio Instrument highlighted, first hit "stop" then click on any Audio track (not an intrument) and hit play again.
This worked for me.
(the opposite advice from that given above ?)

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