loyal Mellenhead from way, way back...was so thrilled when I found out he'd be at Jones Hall. got my tickets for Houston the minute the presale started. Best available at that time, outside of the premium package, was Row W. I couldn't believe it and was pretty disappointed at the time, but got them anyway because I didn't want to take a chance and then get something even farther back. Now today I can go to ticketmaster and find Row C?! Sure wish I had waited. anyone know if it's possible to upgrade at the box office?