Drop in's not playing back until 'stop/start'

Question

Morning all,
Anyone else having problems playing back a drop in on an audio track?
I'm finding that if I cut into an audio tack, record a new section and drop it into the bar or so
that I'm replacing, when I come to play back the result it plays the original track up to the drop-in then silence as it scrolls through the new audio file, and remains silent even when it cuts back to the original file.
If I stop Logic 9 and restart it again on the new section it plays the drop in ok but then silence when it scrolls back into the original audio file, so stop and restart then all is well again.
I tried selecting the (now) three sections and merging them but it won't let me do that either and I am still left with three sections.
This using core audio in Logic 9.0.2 with a Digidesign 192 i/o interface.
Cheers
Pappy

Answer 1

Hi Bee Bee,
This was the first session I have tried using Logic 9 with Core Audio, so I can't say whether it will manifest itself in other projects yet, though I have been having serious crashes when trying to implement the TDM/DTDM option in the audio driver prefs page ( hence trying to go native with the core audio set-up). To finish the session I have reverted back to my old set-up of Dual 2.7 G5, Logic Pro 7 and PT 7.4 which is working very well.
It occurs to me that this problem may be down to the fact that the project in question is automatically saving itself onto the MacPro hard drive which of course also has the system software and application on it, and I seem to remember an old manual recommending that audio files are best written to a separate, dedicated drive. What do you reckon?
Best
Pappy