I just installed version 1.7 on my centos v5.4 machine. When I launch it using an alias, there is a splash across my entire screen and two threads are shown on the bottom panel. This splash persists for long, and I get the usual GUI only after switching between the two threads a couple of times. When I proceed to open a structure, nothing shows up on the GUI though it says a structure has been opened.

All these problems go away when I launch chimera directly from the installation directory.