I recently dumped ulead dvd workshop for Encore 1.5.1 and I'm having this issue. When scrubbing the timeline the monitor won't update. In order to get the monitor to display the video when scrubbing the timeline I had to back the hardware acceleration off by about 2/3. Anyone else ever encounter this? If this is the only workaround what is the trade-off at running the hardware acceleration at only 1/3?