bug#4831: 23.1.50; cursor problems on Mac OS X

[emacs user]

two cursor problems on Mac OS X that seem to have been around for manymonths 
now...
1) start emacs from the most recent CVS using Emacs -QM-x diredwith cursor on 
some file name, move mouse to be over it.  thegreen highlighting erases the 
gray cursor and it is not seen even aftermoving the mouse away
2) M-x set-cursor-color black: the character under the cursor is notseen.  That 
is, the character does not show in inverse-color under thecursor.
please let me know if there is any additional information I canprovide... 
In GNU Emacs 23.1.50.1 (i386-apple-darwin9.8.0, NS apple-appkit-949.54) of 
2009-10-29 on Windowing system distributor `Apple', version 10.3.949configured 
using `configure  '--with-ns' '--without-x''
                                          
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