Thomas Mittelstaedt writes:
 And I am using a recent mercurial version of xemacs, which correctly
 displays unicode files otherwise. 
Try M-: (setq file-name-coding-system 'utf-8) RET, then dired.  Or
M-: (setq default-process-coding-system 'utf-8) RET, then dired.  Note
that both of these will have potentially unpleasant side effects.  Eg,
if you have non-UTF-8 file names (possibly on removable media!) for
file-name-coding-system, and on all process I/O if XEmacs runs
external programs expecting a different coding system for
default-process-coding-system.
Also please use M-x dired-report-bug to report to the dired
maintainer.  I think that dired should respect
file-name-coding-system, but I don't know if it does.
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