Comment 4 for bug 359594

same thing happens to me, and I tried on two different computers. Although it seems hardware related (as in lack of specs) I think it shouldn't happen. I have a laptop with basically the same specs of a two year old macbook (dual processor/1gig RAM) and the mac has smooth background transitions. I really like the feature and hope that it gets better in Karmic, because right now even the music skips when changing wallpapers.