This may be a bug, when you switch windows with the gnome pager or with the keyboard, the proper windows does NOT come up to the foreground, it stays behing with the previous window in the foreground losing focus Although this is not severe it is VERY annoying Gnome built for glib2.0 (red hat 5.2) does not seem to have this problem
This is an enlightenment issue and was fixed in one of the newer builds available from ftp://rawhide.redhat.com/i386/RedHat/RPMS/enlightenment-0.15.5-34.i386.rpm. Please obtain the newer package and see if that solves it for you.