compose key stopped working (Sparc-Solaris-2.6)

[Ronald Florence]

I recently migrated from a Sparc-20/812 to an Ultra-1E/200.  The
operating system is the same (Solaris-2.6), the LyX binaries
(lyx-1.1.5fix2), xforms and xpm libraries are identical, and nothing
has been changed in the configuration.  But, the compose key suddenly
stopped working in LyX.  The compose key still works in other
applications, like xterms or xemacs.

I'd welcome suggestions on how to debug and fix this.  Thanks,

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Ronald Florence                 http://members.home.net/18james