ok, This is something I haven't been able to determine the cause of, it doesn't happen often, but does happen from time to time.
I'm not sure if this is a video decoding error of some sort or not, but my video preview as well as the video in the sony vegas timeline will get distorted like so:
http://i137.photobucket.com/albums/q235 ... merror.png
the video plays fine in windows media player when opened, but will be decoded improperly by Sony Vegas.
I'm hoping a simple reboot will fix this issue, but if not, I'll let you know.