I get this error number with a (Message Missing) notation every once in a while on start of playback. When I get it, I can still do any function in Vegas except playback. I can get the message to go away by refreshing my MOTU console, and sometimes it'll come back in a few seconds, sometimes not for another hour. Does anyone have an idea?

My system:

Vegas 4.0c
Athlon XP 1800
512 Meg
MOTU PCI-324 w/ 2408 Mk II
Synced via Word Clock to a BRC

Thank you!

-Craig