A friend of mine is having an issue with his MacBook Air mid-2013. He is using OS X Mavericks 10.9.4. Whenever he tries to attach a file either within facebook, wetransfer, gmail etc from the Documents-folder, everything messes up. It gets impossible to choose a file, because almost none of them are showing up the way it should. (See attached image). #theirony As he does that, it sort of affects all the other folders as well. Suddenly the Desktop-folder contains all the files that Downloads has. Everything gets messed up, before his desktop fills up with loads of vlc.dmg which I guess is something he has in his Downloads-folder (?). I have attached a screenshot so you can see what happens. A couple of seconds later, whatever program he is using to upload, hangs and then the spinning rainbow-wheel shows up, and never goes away. This is getting really frustrating for him, as the university he attends is starting this week. He is going to install a whole loads of program, so he is wondering about doing a full reinstall of OS X? Has someone else encountered this type of issue? I am Norwegian, so there is probably some weird errors in the post. Sorry about that.