Reflection X Advantage, a component of suite products such as Reflection Desktop for X and Reflection Desktop Pro
Users of Reflection X Advantage version 16.2 and lower are unable to display the X desktop from newer releases of Red Hat Enterprise Linux and other systems. The following message might be seen:
This problem exists because newer releases of Red Hat and other systems incorporate version 3 of the Gnome desktop, which isn't supported in Reflection X Advantage versions 16.2 and lower. Older releases of Red Hat and other systems incorporate version 2 of the Gnome desktop, which is significantly different than version 3.
Upgrading to Reflection X Advantage 17.0 will resolve this issue when working with many remote systems. For best results, use a supported version of GNOME 3. Reflection X Advantage supports GNOME 3 version 3.28 or greater contained in the following operating systems (or greater versions of these operating systems):
For information about using Reflection X to make XDMCP connections to Red Hat Linux 7.0 or higher, see KB 7021775.