problem with display of man pages in xemacs

I like to view Unix man pages using the "manual-entry" function in
XEmacs.  Works fine, with all the benefits of man mode, except for one
thing: highlighted text is displayed surrounded by annoying special
characters in the XEmacs buffer.  These special characters cause the
text to be highlighted by regular "man" commands executed outside of
XEmacs.

This is on a Red Hat Fedora 1 Linux system with XEmacs 21.5beta17.  On a
Solaris 8 system with XEmacs 21.5beta9, I don't have the problem - the
highlighed text is italicized in the XEmacs buffer.  Command-line "man"
commands do the same color highlighting on both systems.

My current solution is to look at man pages using a command line.
What's the right solution?  

-- Pete