some screen windows freezing

Hello,

I regularly experience that one of several screen windows freezes. This
usually happens after some time of inactivity.

^A q does not solve this problem. Are there any other features which can
cause this effect?

I don't know whether the cause of the problem was always the same. When
it happened the last time I attached strace to the respective shell and
learnt by this that the shell still gets input from screen and writes
its regular output.


Hauke