Windows Media Player Sound

I have a training course that I play over an INTRAnet site using Windows Media Player. When I attempt to play the course the volume level is way low even with the speakers turned up to the max as well as the sound levels in the volume control. When i load media player by itself the sould level is set a max.

When i view the video course i can increase the volume by hitting the up arrow.

Is there a defalut sound level setting in media player.

Station Spec’s
NT 4.0 SP6a
128 Meg Ram