Just installed Mountain Lion on my late 2011 13" MacBook Pro. First thing I noticed that the screen calibration changed. It's gone more yellow. Second thing I noticed was that there are some apps missing - I can't tell what though, but I had two pages full, and maybe one or two lines of apps on the third page. When I updates, they were able to fit onto two pages, for some reason. Third thing is that my Mac seems slower. Starting up takes way longer than normal, as does loading apps. What's the deal? Also, I tried to open Photoshop, it told me I needed to install Java. I started downloading but cancelled it, cuz I wasn't sure if it was legit. I installed it through Java Preferences. That okay? I have 4GB of RAM. Just looked on Crucial, seen this; http://www.crucial.com/uk/store/mpartspecs.aspx?mtbpoid=795DA052A5CA7304 I have a base model 13" MacBook Pro, late 2011. That'll work, right?