Richard writes: Yes I figured that as well, and I haven't had any problems with Solaris, HP-UX, AIX, etc. doing remote displays to a different "brand" X-server, nor have I had any problems with IRIX -> IRIX, but mix up IRIX and others and I have had trouble. Linux is probably the worst - X.org server. I'll log in just fine, be working fine, no artifacts, then boom X reset and I'm back at the XDM prompt. This works with different versions of Linux (mostly Debian), different graphics in the X-server machine (ATi (shudder) and nVidia), different net cables, different switches, different SGI boxes. Mac System 10.4 is missing parts - the first thing I noticed after login was that the toolchest was missing the text on about half of the selections. Going back and forth over it will cause some more to show up for a while. Solaris 10/ Xsun (FFB) had red rectangular artifacts. Only tried that one once. No one else has a problem with IRIX clients on other X-servers?