This problem has been occurring for a while now, but I have no idea what the cause is. At random some of my desktop folders aren't showing their contents when I open them. Typically if I just restart my computer they will show up when I reopen the folder after the restart, but this problem seems to be getting worse. Whats strange is that it doenst happen to all the folders, just some. Right now my dropbox folder isn't showing its contents and neither is a recently downloaded DMG folder. Once I restart their fine. Any ideas?