Geomview vs. 3.1 NextDimension window server

[slevy]

Though we still don't know much about what's wrong, here's some
information that might be of interest to those using Geomview on NeXT Cubes
with NextDimension boards.

We've now tried Geomview on our own Next/ND under NextStep 3.0, 3.1 and 3.2.
Under 3.0, it seems pretty reliable.
Under 3.1, as several of you have noted, the window server tends to crash;
    also, when it does run, shading appears dramatically wrong.
Under 3.2 the situation seems much better: shading is again correct,
    and the window server seems to survive -- possibly indefinitely,
    but at least much longer than under 3.1.

So if you're in this boat, upgrading to 3.2 should help.

One disappointing note: despite the NextDimension's fast i860 processor,
graphics (from Geomview at least) seems actually somewhat slower than on
NextStations.

We're still puzzling over this and will announce if a version of Geomview
that avoids these Next bugs becomes available.