2 Perplexing Problems

[Schrickel Randall]

I have 2 very strange problems with a single application we have
in house. I've talked to the Hot Line about the first, but haven't
had any luck with what they suggested. Any help will be GREATLY
appreciated (the Governor is coming in for a demo this weekend!)

1) The application gives random horizontal streaks of color across
   the screen. Hot line says we are trying to use an invalid bit
   plane (writemask) or color, but I have had no luck looking at 
   those areas. Any other pointers/things to look at?

2) The same application goes through periods of slowing down then
   running at a normal speed. We have checked memory allocation,
   thinking that it may be growing, swapping, shrinking, but that
   looks like another dead end. It REALLY slows down; the animation
   almost stops. Help!

Our setup has 6 2400 Turbos (4-6 Mb memory) networked to an HP 9000
835S. The application is a double-buffered animation program. The
application acts the same on all 6 2400s, so we don't think it's a
hardware problem. We also have other programs that use double
buffering that don't have these problems. We are using the Remote
Graphics Library (which we didn't develop; maybe it's from the
Naval Postgrad School?) which uses sockets on both ends so the host
HP sends graphics commands to the 2400s. Running 3.6 Unix. Also, to
help with (2), what can I use to monitor my system/application
performance besides "cc -p and prof"? Any PD full-screen monitors
out there? If so, where?

MUCH Thanx in advance!