50g

I recently upgraded my 50G from 2.09 to 2.10.7 and everything has
worked fantastic, with one glaring exception so far.  When I try to
plot g(X) = IFTE(X<1,X,2-X) (from the HP49G+AUR p. 16-34, I constantly
receive error messages including bad argument type.  Outside the
plotting environment, the function works fine.  I have tried both RPN
and algebraic modes with all flags set to default settings.

I reflashed back to 2.09 and everything works fine!

Any solutions?