I have Adobe Premiere Elements 4. It was loaded in already when I got my computer from Dell. Every time I try to playback the video for editing purposes I get that error message. It will still let me put video clips together into one video but after I have exported the video I have to restart my computer before it will play. The sound device is set in shared mode: 2 channel, 16bit, 48000HZ(DVD quality). Please help. Thank you.