Logic Pro 8 Problems bouncing audio to video

I've been trying to bounce some audio and the end result is a mov file with my audio. The audio is totally slowed down even although the video runs at the correct speed.

Anyone have any ideas why this might be happening?

Thanks Doug, I thought that it might be something to do with sample rates.

I'll have a play around with the sample rate options and see if that makes any difference. I don't suppose you know if it makes any difference if audio in the project is not all the same sample rate?
audio in the project is not all the same sample rate?
Does this mean that you have audio files of different rates in the Logic project? Not a good idea - you can set your preferences (it actually should be by default) to convert audio brought in to the project to the project sample rate.

Or that you're working in Logic at 44.1 and exporting that, but your movie software is trying to play back at 48k? When you export your audio to the QT movie you have a choice of sample rates to pick from.
OK, so thanks for the help with this one but, after hours of trying to bounce from my laptop with no success, I transferred the project to a friend's minimac and bounced with no problems from there.