im pretty frustrated, i just became an apple user in march 2012, its been a bumpy road. i love OS X. i hate the problems though. i feel frustrated because it seems like most others here don't know what issues im complaining about, including people with the same Mac model as mine. to my memory my computer worked perfectly fine in the ways it hasn't since around mountain lion in July. these issues included hard freezes (with moving cursors) which others are experiencing.. blue tinted colour profiles taking over my custom calibration with certain programs open. to me these issues are probably going to be fixed at some point. but whats really gotten to me is this UI stuttering lag i experience when using swiping on the trackpad with Launchpad pages and desktop/spaces swiping. the otherday, i caved in and put faith in a 'clean install' of mountain lion, to my surprise, it improved quite a lot and more consistently. i decided to give it the benefit of the doubt and just start installing my apps again, i decided i would log them though to keep an eye out for a culprit causing any issues. well, eventually the stuttering lag came back, not as bad as often as before, but still. i uninstalled all the apps except for the official apple ones (inc ilife/iwork) and it remained. i wondered what could cause this for me and not others? in the end i experimented with launchpad and i found that if i have less than about 25 apps on the first page, it will remain smooth like it did on lion. anymore, and the lag begins to show up. - why the heck does this happen? is my macbook's gpu not powerful enough?? desktop swiping - generally smooth as lion unless i have several apps on one desktop up, then it begins to lag in transition. so i can't understand this, even today i made two partitions and clean installed lion and ml on each partition and compared, lion performs a little better but still suffers the issue, though not as easily on the launchpad. does it take a better macbook to stop this lag? what could cause it? why is it some experience it and apparently most others not?? the only thing i can think of, is that i upgraded the mbp myself: a samsung ssd 830 256gb, and crucial 16gb Ram. at this point, i'm so so close to being a completely satisfied and happy apple user, yet.. so far becuase of the issues that im experiencing. its true that alot of apple users remain loyal, for me i know its because despite the issues, everything about it i love much more over windows.. and ubuntu. i'm not sure what to do.. i was thinking about going to an apple store and seeing some other macbooks mysef to see if they have this issue, and maybe see a genius bar person about it, maybe theres something wrong that they can do to fix? or i was thinking about selling my macbook asap especially before the apple care runs out, and recoup as much of the value and money i invested into it, and upgrade to a 2012 machine with better gpu's..