Bug: mathtext in EPS output displays sqrt in shifted postion

Doing the commands: ------------------------------ from

    > matplotlib.matlab import * plot((1,2),(3,4))
    > figtext(0.5,0.5,"$\sqrt 2$") savefig("tryout.eps")
    > ------------------------------

    > diplays the sqrt sign shifted upwards against the regular
    > text.

Looks like the dreaded cmex bug. Paul, any ideas?

JDH