For some reasons, C2D MBP (running 10.4.8) does not work well with Wacom's Intuos tablet (9X12). I did some re-install of the current driver from Wacom web site a few times already but the results are the same. When I move the tip near the bottom part of the screen (where Dock is located), Wacom's pen tip shows contextual menu even though I am not pressing any key nor button. I just hover the tip near Dock area and that happens. Also, as I move the tip over Dock, apps are automatically launched simply by going over that app's icon (again, I am not pressing any key nor clicking on anything). Are you having the same issue with your MBP? My PBs and Intuos are working flawlessly. So, I am trying to figure out if this is the driver problem or something with MBP.