Problems with xorg-x11-server-Xorg-1.20.4-7.el7

[MAH Maccallum]

I am still having repeated failures with this (using MATE as my desktop). It 
creates many directories in /var/spool/abrt and a massive /var/spool/mail/root 
file unless I clear those at short intervals.

Can anybody suggest a reason/cure?

Malcolm