+
+It sure would be nice if someone would implement the \fBSGI SCREEN_SAVER\fP
+extension in XFree86; it's dead simple, and works far better than the
+overengineered and broken \fBMIT-SCREEN-SAVER\fP extension.
+.TP 8
+.B Lesstif (Motif clone)
+\fIDemo Mode\fP is buggy if XScreenSaver was compiled against really old
+versions Lesstif; if you use Lesstif, make sure you use version 0.82 or newer.
+.TP 8
+.B Athena Widgets
+If you compiled against the Athena widget toolkit, the dialog boxes are
+pretty ugly, especially the password dialog. Use Motif! If you don't
+have OSF Motif, use GNU Lesstif, it's free: http://www.lesstif.org/
+.TP 8
+.B SGI Power Saver
+If you're running Irix 6.3, you might find that your monitor is powering down
+after an hour or two even if you've told it not to. This is fixed by SGI
+patches 2447 and 2537.
+.TP 8
+.B OpenGL Programs and Visuals
+Some of the graphics demos included with xscreensaver make use of the
+OpenGL (or MesaGL) 3D library, if it is available. It is possible (even
+likely) that \fIxscreensaver\fP's notion of the ``\fIbest\fP'' visual is
+not quite right for these GL programs.
+
+The odd thing about GL programs is that, unlike normal X11 programs, they
+tend to work best on a visual \fIhalf\fP as deep as the depth of the screen,
+since that way, they can do double-buffering. Try it and see, but you will
+probably find that, for these particular programs, you should specify the
+deepest visual that is half as deep as the screen. (See the discussion
+of the \fBprograms\fP resource in the \fIConfiguration\fP section, above.)
+
+For example, on a screen that supports both 24-bit TrueColor and 12-bit
+PseudoColor visuals, the 12-bit visual will probably work best (this is true
+of base-model SGI Indys: the 0x29 visual is the one you want.) Oddly, on
+SGI O2s (machines that have serious hardware support for GL), the 12-bit
+PseudoColor visual looks awful (you get a black and white, flickery image.)
+On these machines, the visual you want turns out to be 0x31. However, 0x31
+is but \fIone\fP of the \fIeight\fP 15-bit TrueColor visuals (yes, 8, and
+yes, 15) that the O2 X server provides. This is the only visual that works
+properly: as far as
+.BR xdpyinfo (1)
+is concerned, all of the 15-bit TrueColor visuals are identical, but some
+flicker like mad, and some have deeply weird artifacts (such as hidden
+surfaces that show through, as if depth worked backwards!)
+
+I suppose these other visuals must be tied to some arcane hardware feature...
+If anyone would care to explain it to me, that would be great.
+
+Your mileage, therefore, may vary dramatically.
+.TP 8
+.B Red Hot Lava