Always unselect "tune last channel on startup".
HA! Amazing that it would be so simple!
First, I uninstalled and reinstalled all of C:\dvbdream including the settings. I could not access the Prefrences without doing that. Then, I unselected the box in the Preferences and, when I shut it down, it crashed but I clicked on restart. The crash window went away so I shut down dream again. This time no crash message. I started it up again and it worked fine. It looks like we found something that needs fixing. Much gratitude for the tip!