Hi all, This is a rather annoying problem that I have been getting recently. I upgraded to an 840 EVO 250GB in early June this year, and did a clean install of OS X Mavericks and enabled TRIM. However, the loading times for programs and shutdown times is extremely long, longer even than the old SSD that was in the laptop originally (which was replaced due to capacity issues and the fact that it was registering HDD level read and write speeds). Do you have a solution to the issue, bearing in mind that I am now running Yosemite BETA (legit version, as in 1m bunch) and only have a couple of apps installed outside of the generic range that Apple includes, yet things like FaceTime and Messages still take like 5-8 bounces to load :S? If anyone could provide some experience or constructive assistance I would be very grateful, as I get sort of annoyed when little things like this happen. Thanks in advance, Jack P.S: This is on an Early 2011 15 inch base config; i7-2635m, 6490m, 4GB RAM, so could it just be a longevity issue?