Linux Wacom Tablet Project

I am having a problem with the mapping of the cursor. In the upper left
corner is right, but the cursor reaches the bottom right before my pen does
by a significant amount.

I am using ubuntu studio with kernel 2.6.30-020630rc3-generic (with ubuntu
patches). I have tried both the stable and development packages, and both
have this problem. I can, however, get the 0.8.2-2 to work if I run kernel
2.6.28.

I have an acer R1F; It is a USB tablet, with stylus only input.

Please tell me what information I can provide to help with this issue.

Thanks!