This triggers a 'supported tablet not found' message. If not, it's very hard for me to figure out what's going wrong with your tablet.ĮDIT: Thanks to somebody providing a crash report, I was able to fix a bug where if you had ever installed Wacom's latest driver, that driver writes a new-format preferences file which causes the old Intuos 3 driver to crash on startup. If you open up the 'Console' app, check the Crash Reports tab and see if you find anything recent there mentioning your tablet, if so this provides rich information I can use to hunt down and fix bugs in this driver. My ability to find issues with the Intuos 3 driver is very limited because I don't own an Intuos 3 myself. However it doesn't aim to fix any 'supported tablet not found' issues - it only fixes the specific issue of the preference pane crashing when anything on it is clicked on.
My 6.3.15-3 patch was tested with a single Intuos 3 (make sure you installed this patch and not the v5 one for Bamboo).