I tried the ASCII Table demo with Launchpad and it seems to work flawlessly.
When I recompile for Stellaris and run on the StellarPad at 9600 baud, it works MOST of the time, but occasionally the serial monitor receives garbled text. I thought it might be a problem with the serial monitor, so I also tried using teraterm with the same results.
I am using Energia 0101E0009 under Win7.