I don't know what is happening. I have MAC g4 with a digi001. I am on OSX using Protools LE 6.4. This past summer I edited and overdubbed a whole album over two months. I worked about 8 hours a day with no problems. Recently i have taken on a new project and ran into a wall. I am getting weird digital pops and clicks on my playbacks when I start editing. For instance, everything sounds fine until I start dragging and moving things around, at which point I start to get the pops and clicks. I am an experienced editor so I can say with confidence that it has nothing to do with bad edits. The pops and clicks happen over unedited parts. Any suggestions? Should I defragment my computer? Help!