Here is how I duplicated the bug:
Click GAME > Server Options
place a checkmark next to "Start Server at Launch"
(Also make sure you have Male Checked in Options)
Restart MTGPLAY
Once back into MTGPLAY
Enter Player Mode and click your name and choose reset
The chat text says 'Nick hides HER hand'
Now if you were able to duplicate the bug... you can
check your options for a checkmark next to male
It will say 'her' anytime a 'him/her' text is displayed in
the chat box.
It will keep saying 'her' even when starting mtgplay at a
later time until you uncheck 'Start Server at Launch' and
restart MTGPLAY
I am using version 510
So what this means is I can't use the Start Server at
Launch option and still have the chatbox show me as
male.