Audio sync issues with Cap 4

Hi everyone-
I'm wondering if anyone has encountered a similar problem before, and what the fix (or even the cause) may be:
I've built an automated tutorial running about 25 minutes over 134 slides. I'm noticing an issue in playback where the audio is tending to creep ahead of the visuals, so that after a couple of slides, the audio cue will almost be a full second, sometimes more, ahead of the slides.
When viewing the project unpublished in Captivate, it's not an issue and the timing is all correct (I've double-checked twice now).
During playback, if I pause and rewind a full slide, or even just a few seconds, everything realigns and the audio will be back in sync. But inevitably, after a few minutes, the sync is off again.
Any help or thoughts would be greatly appreciated!

Hi there
Perhaps try adjusting the frame rate a tad and experiment?
Cheers... Rick
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