This sounds like something from etiquette class, but this little activity can save hours of headache throughout your system. In the Utilities folder in the Applications folder, there’s an application called Disk Utility. Under the First Aid tab there’s a button to repair permissions (Repair Disk Permissions). Select your drives and let it rip. You should run it a couple of times. It’s amazing how so many of those little quirky problems will go away.
Like this tip? It comes from the book
Final Cut Studio On the Spot from Focal Press.