I was having near daily lockup problems that seemed to start around the time of the update. I think the problem I've been having is caused by how my system is connected to my TV. I had it connected to a HDMI autoswitch, so I could turn on my XBox 360 and have it automatically switch signals...

I noticed that as well; the downloadable channel guide hasn't been updated to add the new Viacom HD channels either. What is the actual number of showtime HD channels? I count at least 3.