When I start my MBP and later my wife switch to her account than she will allways get this- (Screenshot - https://www.dropbox.com/s/fx89pt9rvfxk3h8/Screenshot_2015-01-07_18_45_19.jpg?dl=0 ) I have to switch to my account and back to her account in order to solve the problem. Genius did all the tests and the Memory, SODIMM, 4 GB, DDR3,1600 was changed. Unfortunately, the problem is still there. Any ideas? Thanks.