I'm suddenly having trouble with the Finder in Mavericks 10.9.5. When I open a new window on the desktop, it doesn't show any files in the window. I have the Finder set to open a specific "Projects" window, but nothing shows up in that window. If I set the Finder to open another window, nothing shows up there either. I can't close the window or re-size it. Applications open just fine and work properly. Only after using Force Quit Applications to Re-Launch the Finder does a new window show the contents and function properly, but… This only lasts for a couple minutes, then it reverts to empty new windows that can't be closed, etc. Any ideas what's going on?