If you select Remote Login from the main CDE login menu by clicking the Options button, a login to another host system occurs. When you terminate the remote login session and return to the original system, the screen freezes. To start another CDE session on a hung screen, log in remotely to the system and kill the hung DT session.
Workaround: Apply patch ID 107180-05 or later to prevent this problem. This patch is available through approved Sun support channels.