Burk Webb

Howdy, when playing back wmv video files with audio I'm getting occasional audio glitches. "Preview video as thumbnails" seems to help a bunch but I'm still getting the occasional glitch. This is with Windows 7 laptops (i5 proc and nice vid card), WO 4.3 and Quicktime 7.7. It has done the some thing with an earlier version of quicktime as well. Anyone else seen this? Thanks for any info - Burk