For Rational ClearCase Remote Client, use this link to obtain the most recent information on troubleshooting your installation: http://www.ibm.com/support/docview.wss?uid=swg21516568
For Rational ClearQuest, use this link to obtain the most recent information on troubleshooting your installation: http://www.ibm.com/support/docview.wss?uid=swg21512238