Since updating to Lightroom 4.4 I cannot move photo files to another folder on the same drive. The bar at top left goes part way across and stops. When I closed the program, saved, and opened again and then tried the same move a popup indicated the files had been moved but they were still in the original folder as well. Using Win7 32 bit. I am concerned with continuing for fear of corrupting photos or library. Otherwise this has been a clean program since the start with Raw Shooter.