bug in mathtext eps output

I am trying this problem on the developer’s list.
Whenever I type a greek symbol in mathtext and save the figure as eps,
the greek symbols don’t show up in the eps file.
Confirmed on several windows machines.
Python 2.4. mpl 0.91.2. (but it worked fine under 0.90.1).
Does anybody
else have this problem?
It worked for mpl 0.90.1.
Has something changed in mathtext that causes this?

Mark Bakker