Thanks for the reply.

I have and use the manual and the lite-c workshop but didn't
find anything that addressed this issue.

I did however figure it out, so I won't go into detail
about double buffering, and maybe the "refresh" flag is something
that I made up, but I have used it as a setting in the flags = ...
for panels w/o errors so I dunno.

Anywho...

To get ramped up, I was just doing some test scripting, but I
was doing it without loading a level. So just to see what would
happen, I loaded an empty .wmb, and now the front buffer clears
out before drawing the back buffer, like it should. Hurray