Logic 8 plays split stereo files random

When I play a split stereo file Logic 8 plays those files random, they aren't synced together. Sometimes some audio files aren't playing at all. Stop and play solves in most cases this problem. I have this on several harddisks.
It seems like a defragmented harddisk. I erased and re-formatted the harddisk already, no results. I use DAE and Core Audio together.
Any suggestions?
Wim

try to use only built-in driver...
which are the interfaces that you have for not DAE tracks?
Is this issue only on the DAE tracks?
This not a Logic problem .. or better I never got this problem!
How many DAE tracks are in your DAE preference settings...
are you sure that you have the DAE DSPs power that can play all tracks that you have selected?
fermusic

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