My music will randomly speed up or slow and stutter after updating iTunes to 10.2.2.14

Hiya,

I updated iTunes to 10.2.2.14 last night and when I came to play music today (after rebooting) everything seemed ok...

But after 5-10 mins the song would slow a little and stutter (sounded like someone had split the track in half and had added a half second delay between each part then added sone static for good measure)

I tryed googling it but only found some articals for iTunes 7 where it suggested playing withthe quicktime settings, I have done this and now after 5 mins the music sped up dramatically and 1 second or real time became 30 seconds of iTunes time 😕

Hope you can help

Murph