Hi Michael,

First, I want to thank you for this awesome piece of software. Simple yet powerful, highly customizable... . It took me a quite a while to find a decent nurbs modeller like this that runs on linux.

Now the bug. I drew a curve like this. Looks fine in 3D view.



Still looks normal when switched to front view.



But if you pan it left or right, the curve become a straight line.




Or just zooming it further also straightens the curve.