Choppy Playback With iTunes 8.2.1

Hey everyone,
Ever since iTunes 8.2 (and now in iTunes 8.2.1), I have noticed that when opening other programs, or sometimes when I load new Web pages, my music playback will chop for just a second or two, and then continue playing as usual.
I've done what was suggested on the support pages aimed at troubleshooting sound and playback issues, and those suggestions did not seem to do any good with my issue. Like I said, this started right after updating to version 8.2; prior, no matter how much of a load my system was undergoing, I never seemed to have any sound-related issues.
I've noticed that if I open the Task Manager, and set the priority for iTunes.exe to AboveNormal, that the issue goes away. I'm just curious why this seems to have cropped up after the 8.2 update.
Thanks for any information!

I had the same issue with a Thinkpad X200s laptop's built-in MM keys plus an old Microsoft Natural Keyboard Pro's MM keys, and found this solution in my bookmarks which is working great for me in Vista 64 + iTunes 8.2.1.6 with both sets of keys:
http://www.everythingitunes.com/os/windows/2008-01-04/mmkeysdll/
It had also worked a year ago on Vista 32 for a Dell M1330. Very easy too -- I just placed the .dll in the Plugins directory and restarted iTunes.

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