Keith,
Bug update:
Found the same thing with a customer yesterday as well. Anytime you closeout either the Graph or Chart using the X, and use Add to Layout to re-open, the default tables appear. I confirmed on my setup using version 3.0.28.
Also if you turn off the vehicle with the scanner running it locks up the scanner and the screen goes grey. Only way out is to close down the scanner and you don't get an error report request.
Ed M