missing DBGPRINT messages

I am using windbg in a 2 system config. I see only a small subset of my

DBGPRINT messages on the host screen during debug. I have tried the
4 available baud rates with no effect on the message volume.

windbg help seems berift of information on DBGPRINT. Is there a good
description of the facility and options available somewhere?

Thanks, Mark

Mark Roths
SoftAir Microsystems