#17 Out of Range Error with Hints

[MO_Woinem]

Hello,

when I apply a hint to a curve point it often happens
that the resulting curve does not look as if it
belonged to the supporting points, it rather looks as
if one of the supporting points was far outside the
window (but the effect can also be so small that I do
not remark it on first sight).
When I move the hint I can usually find a place where
the curves look normal and still include the center
points of the pixel squares.
When I try to build the true type font without having
found all the "small effect" cases, I get a "Java out
of range error". Then I have to remove hint by hint
until the compilation of the font is possible again.

Does anybody know a better solution?