Apple OS X 10.5, bka Leopard, a vision worthy of R3dmond. By foolishly keeping up with Quicktime (7.4) and iTunes (7.6.2) updates, and dutifully keeping up with Leopard OS updates (10.5.3) in the hope that they'll fix the problems in the current incarnation, I have ended up with a computer on which I can no longer listen to any of my music; iTunes will fire up, show my library and even play songs, but no sound comes out. Let's say this again, iTunes, which is probably Apple's coolest app, doesn't work with Leopard, Apple's latest and greatest OS. (Being able to say that sentence in all sincerity and without a trace of irony intended is why this is in the jokes section.) No sound on the DVD player, either.
for a real joke, see http://forums.macrumors.com/archive/index.php/t-376394.html