YaDeLi - "Yet another Device Link for IL-2"

[Tailspin45]

This little app is just what I need. It's elegantly simple and very nicely designed. But I have a weird problem when I use it.

With both my joystick (Warthog) and driver (win7) calibrated, IL2 aircraft fly straight and level. Until I use YaDeLi to add rudder pedals. Then they have a left rolling tendency so severe that full opposite aileron trim doesn't prevent it.

I also find that the aircraft are very twitchy, for lack of a better term, despite assigning curves to all the axis. In fact, it seems as if there's some kind of crosstalk between the axes.

Now, this all may not be a problem with YaDeLi and it's only revealing some other issue I didn't know I had. But I can't fly without rudders (I'm a taildragger kinda guy) and I can't install them without YaDeLi.

Anyone have any idea what the problem may be?