It would indeed be interesting to find out. Hopefully Chris will have an idea - it would be great to have this working, I was very much planning to switch over to 1.9.8 Jonathan Morton wrote: > On Wed, 2010-06-16 at 11:42 -0400, cu wrote: > >>> (gdb) p box[i].p2.x >>> $9 = -128 >>> > > I think this may be the actual problem. Why is it negative? > >