HP came in with her class, and among other things needed to do the telephoning activity. When we started up the Sanako teacher application, we got the same RSRV error as the other day. I was still hitting the same problem after starting RSRV.exe manually several times. Eventually, after confirming that both RSRV.exe and RSRVAny.exe were running, I turned off the console and turned it back on, then restarted the application; that finally did it. My guess is that RSRV.exe has to be running from boot time, not logon, otherwise it has trouble connecting to the console.
Even after everything was running, and we switched Group A to the Telephone activity, we had trouble getting stations to connect to each other; stations which were not connected to anyone were still reporting themselves as Busy when called by another station.
This teacher station is pretty much unusable without one of us physically in the room to get it going, and even then it takes a while and is flaky. I wonder if it might be better to roll it back from Server 2003 to Server 2000, like Lab C, which as far as I know is working OK.