So I just bought this cheap pressure-sensitive graphic tablet for my home rig. It doesn't do all that the big league tablets (i.e. Wacom) can do - no tilt detection for example - but who needs that? it's the pressure that I care about. Anyway, it works admirably with Photoshop, Krita, and Blender, But I can't seem to get it to work with Inkscape. I can see it's recognized in the Input Devices dialog: tablet and pen are there. I enabled the pen and set it to use screen coordinates. moving the cursor works, no problem. But drawing doesn't. When I try to draw something - anything, pen, pencil, rectangle, circle - nothing happens. Well, not quite nothing. using the pen is supposed to be equivalent to a left click but it seems to invoke the right-click menu sometimes. Other times it seems to shift the view, zooming in and panning to the left. Yet other times it does nothing. Anybody got suggestions as for what I could try to do to fix it?

If it helps, this is the model I have - http://www.xp-pen.com/products/960.htm And I'm using Inkscape 0.91 pre-2 on a Windows 7 64bit machine.