Re: QCCOLOR.DRV not working

Brian O'Shea (
Tue, 30 Jul 1996 12:00:59 -0400

>I thought I'd try one more time.......... No help from anyone yet!
>I am running the image from a scanning electron microscope into an AV board
>of a 7100 powermac and connecting to a reflector that we have set up. We
>are running v.83B3 of CU-SeeMe and Open Transport 1.1 (Sys 7.5.3) and
>CU-SeeMe (tm) Reflector version 4.00B3 on IP address on the
>following system: OS Version: ULTRIX V4.3A (Rev. 146) System #20:
>Mon Jan 15 12:27:00 CST 1996, CPU: DECstation 5000, Memory - maxmem:
>14130K physmem: 24576K, Display : PMAG-DA - PXG (8 or 24 plane). The image
>looks great on our 7100 but when schools around Iowa connect (usuaully via
>a ppp connection) to the reflector the top 1/3 will update within a few
>seconds, the middle 1/3 maybe after several minutes, the bottom 1/3 never.
>Does anybody have any suggestions as to what is going on? Nobody seems to
>have a clue. Thanks!

You don't say how much bandwidth you have available to the internet.

You also didn't say how many people are connected, although I'm not sure that is
your problem, it could be a contributing factor. The more people that are
connected to the reflector, the more "static" overhead there is. By "static" I
mean that without sending any audio/video/chat, there is overhead traffic that lets
each connected user know about each other. This traffic can be significant if your
using a 28.8 modem. The White Pine reflector has some optimizations that make this
less of a problem, but it's still a problem with a large number of people
connected. Also, the 4.0B3 Cornell reflector had some bugs when running on
machines with Little Endian CPU's, like your DECstation.

I would recommend trying a White Pine Reflector and see if that solves your
problem. You can use it for free for 30 days.

Let me know how it goes.


+ Brian O'Shea White Pine Software +
+ Reflector Group Leader 15 Messenger Square +
+ Suite 8A +
+ Fax 508-695-2378 Plainville MA, 02762 +
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