Audio lag in video while on Terminal Server

Hi Everyone,

We are having an issue with audio being out of sync when viewing flash video on a terminal server.  The terminal server is running Windows 2008r2.  The audio seems to lag behind the video by about 1 sec. We are planning to rollout training videos and about half our users are on Terminal servers. 

Here are some of the things we tried:

http://blogs.msdn.com/b/rds/archive/2009/05/11/what-s-new-in-remote-audio-for-windows-7.aspx?PageIndex=2#comments

On the server policy:
                Computer Configuration ? Administratrative Templates ? Windows Components ? Remote Desktop Dession Host ? Device and Resource Redirection ? Limit Audio Playback Quality (Enabled, Audio Quality: Medium)

In the RDP file add a line that says:
                audioqualitymode:i:1



thanks...

Mark