Subject:   -53- 1.2 GLX Toggling antialiasing with GLX on 4.0.5
                RealityEngine
Date: 8 Apr 1994 00:00:01 EST

  Toggling antialiasing in the sample programs running in GLX mode on a
  4.0.5 RealityEngine apparently confuses the graphics pipe and causes
  wild texturing.  Workaround: use only in GL mode (e.g. do not use
  "perfly -x") or upgrade to IRIX 5.2.