Yesterday I ran windows update on the carputer. There was an updated TS driver so I went ahead and selected it for download. Once the download and installation finished the screen calibration went to $&^%. As soon as the installation finished the x coordinates became "compressed" to the left. What I mean is that as you moved your finger from left to right, the pointer increments to the right were less and less as you approached the right border, like a logarithmic graph behaves. I did the update while driving and I couldn't use the carputer for the rest of the trip, it was so bad I had to vnc in to run the calibration utility.
This points to a driver issue, as soon as the driver was replaced, the calibration was lost. I thought calibrating the screen meant training the controller on were the edges of the screen were so it could send the right coordinates to the driver. The way this seems to work is that calibration is done on software on the driver.
This could be confirmed by taking the screen to different computers and verifying that calibration is "lost" as you moved it from computer to computer.
The updated driver didn't made a difference, the screen still has a bump on the right hand of the screen.
Like ShawJohn said, the right hand side is working as far as the Y coordinate goes, its just the X coordinated that get screwed.