Finale Printmusic 2010a Playback Issues - Crackling Sound, Lagging playback?

Okay, I recently bought Printmusic 2010, (and then the "a" was added after an update a while back... Thought I might add it in if it would help anything...) And I haven't had any problems until yesterday.

At first, when I clicked play, I could hear the song playing but there was an odd crackling noise on top of it, and it was really annoying. So I stopped it and replayed it, to the same effect. After redoing that a few times, it sorted its self out, but the little moving line that should be going along the music seemed to be about two beats ahead of the sound, which was playing just fine. I've tried restarting Finale, my computer, and everything, but it's not working, and I get the same thing. Now, this is just a minor inconvenience and obviously I can just disregard the little moving line and read along myself, but It'd be nice if anyone knew how to fix this or anything, or has had this problem.

I'm running Windows XP on a Dell Laptop that is several years old, at any rate.

Wow, I thought I was the only one having that problem

I've had the crackling sound as well, and sadly it's not something you can fix unless you take out a lot of sound. It will always be the same at the same spots on the .mus and .mp3 files too which sucks.

I have had this problem with the 2008 version of PrintMusic as well (the crackling problem that is). I've found it only occurs when many instruments are playing and I'm running two staves through the same channel, such as I would do with a piano or organ. Sometimes assinging each staff to different channels helps, but I haven't found a surefire way to stop it during playback. However, if you are saving the music to an .mp3, you should be able to save each instrument as it's own sound file, which should stop the crackling (I hope).

Of course none of this applies if you are actually experiencing a different problem than I did with 2008.