Lately, some of my opponents that spend a lot of time to move, have negative time. I mean, when they spend all of their time for a game, the time is still going down: -1,
Sometimes the program (programmers refer to it as a daemon) that starts new tournaments anddeals with time going to zero isn't running. Usually it gets restarted fairly quickly.
If it's a daemon like that, one could easily use cron to call a script that would examine the output of ps to see if the daemon is running and, if not, restart it.