This evening, I run gmc in KDE as before.But gmc start just a minute and it is dispear. >From then,I can not run it again.When I switch to Gnome and the problem is solve. The mistake prompt : [root@ /root]# gmc ** WARNING **: Root window clicks will not work as no GNOME-compliant window manager could be found! ¶Î´íÎó (core dumped) How can I?