Hi. Im having the same problem, the only difference is that it started happening all of a sudden in my system. Everytime I have the “PlayHead Sync” in “Open” the dropped frames window appears. I tried to do everything the window suggest me to do, yet nothing seems to solve the problem. Im new to both Mac and editing therefore I dont really have a clue on what to do. Regarding my system information it’s a G5, Mac OS X 10.4.2, 8 Gigs RAM, ATI Radeon 9650, FCP 5…