Honestly, i have no idea.
This menu thing looked important:http://www.khulsey.com/wacom-intuos-tab ... ences.html
So... check that out...
I recently bought a Intuos5 for my GF (for
, she paid, i bought), but i suspect im soon gonna have to help her make it work on her mac, most likely. Even though photoshop should be more plug and play.
Uhm. What else....
Try googling, but with keywoords.
Like, Intuos4 OSX express key gimp doesn't work.
Then check the first 2-3 relevant results for any clues.
Thats all i can say.
Cause problem fixing, we're good at. Problem finding...
Its hard to find the problem without physical control of the computer.
But, if you find a guide that worked for someone, you could try to completly copy them.
Like, use the same driver they did, use the same stuff they did, to everything the same.
Also, maybe som sketchy software or some old crap is stuck.
Virus scan, defragmentation and a cleanup (I think CCleaner is on Mac too...)