Intous3's Upper 1/4 Won't Work

[alvin777]

Hi. The Intuos3's upper 1/4 part does not seem to detect anything and does not seem to work. The lower 3/4 is alright. I've tweaked the mapping and reinstalled software already (I've set things in default in the Intuos control panel). It wasn't dropped but had always just been on the table connected to the Mac all the time. I'm using a late iMac 2009 with OS 10.6.4

 

What could be a good fix for this (if this had to be sold as defective, how much is the fair price)? Thank you in advance.

 

Gbu,

Alvin