`screen` program freezes
screen version 4.00.02 (FAU) 5-Dec-03 running on CentOS.
From time to time, the program freezes. ps shows it in 'pause' state. It might be due to something I typoed immediately before the freeze (though I can't remember what or replicate it), and I know sometimes it isn't (because I haven't been near the computer).
When it freezes, programs trying to output to a screen can get hung in write_ state.
Any ideas about (1) how to unfreeze, (2) what causes the freeze, (3) how to prevent the freeze?
(Attempting to find an answer has convinced me that program names that are common words is a bad idea.)