I got a 13" Unibody MBP, lower-end model, in July. Since then I've noticed various issues. First of all, I have the common beachball problem. There's no click/beep sound associated with it like some have, and I've noticed clearing out my cache and occasional restarts have helped that. But in general things seem to be much slower than when I first got it... But of course I have many more programs installed, but very few are actually running. I remember it being nearly completely silent when I first got it. Now I can hear noises when it loads web pages, applications, etc. that reminds me of the noise you'd head from an old desktop. Was I just imagining that it was silent before? The fans seem to run more often, as well. Also, my audio jack is more and more often not detecting when something is plugged in to it. Usually putting it in to sleep and waking it back up helps. Anyway, all of these together make me wonder if I should be paying a visit to the Apple store, and if so, what should I ask?