Hello, dear NoMachine!
Problem named “Could not start the display server. Error is 5. Input/output error ” fixed by upgrade to 4.3.30_2.
But, as I see, number of files in ICE directory still increasing, but not so quick :
[root@termserv8-med ~]# find /tmp/.ICE-unix/ | wc -l
Maybe it will be interesting for you.