Comment 1 for bug 82109

My Intuos 3 A5 usb doesn't show this problem - all buttons are assigned their default values in Gimp or Inkscape.

Your problem might come from the fact that manufacturers sometimes introduce bugs (especially in the case of a Tablet PC, where they make their own modifications). Else, you could check with serial Wacom tablet owners.

In case your problem is only specific to you (or the brand of Tablet PC you're using), you might have more chances talking directly to upstream (The Linux Wacom Project). It should be possible with a few commands to get all the information on your hardware they need to update the linux wacom driver to "correct" the bad configuration of your hw. In case you have a Wacom tablet, you would more easily find owners of the same hw (they have a mailing list) who could tell you if they face the same bug.