Please describe the problem:
When trying to remove a guide with my Wacom Volito 2 pen tablet, if I move the
guide over the ruler GIMP won't remove it but just cancel the operation (look at
the bottom status line).
Moving the cursor back to the image would lead to a new guide being added.

Steps to reproduce:
1. Open or create an image and fit it to the window.
2. Add a guide (click over the ruler and keeping the pen down - aka button
clicked - move it onto the image)
3. Choose the tool to move, pressing "M" and ensure that in the tool options you
will "Transform layer" (first button of "Affect")
4. Move the cursor over the guide and hold down the SHIFT key. Click with your
pointer and move the guide off the image and off the window.
5. Lift your pen (stop clicking).


Actual results:
The guide will not be removed and if you return on the image (withoud doing step
5) a new guide is added.

Expected results:
The old guide should be removed.

Does this happen every time?
It happens every time I follow these steps with my pen tablet (Wacom Volito 2,
under linux 2.6.11.8 with linuxwacom-0.6.8 drivers). If I use the mouse
everything work fine.

Other information:
The easiest thing you can do is use your mouse to remove guides.

There is another workaround: do not zoom the image so that it fit your window
and when you drag the guide off the image stop just after image's border, on the
grey area. This will correctly remove the guide (look at the bottom status
line). Reaching the ruler (or the window borders) while dragging will change the
botton status text from "Remove guide" to "cancel guide" and won't remove the guide.