I just upgraded to the 6.5.1 version and have run into a problem: When I search flight availability using Sabre/GTC method (since I know the FS is temporarily unavailable) I get the following error message:
KVS Availability Tool
The requested method is currently unavailable or may require a newer version of the KVS Tool. Please visit www.KVSTool.com to review the latest system status and upgrade announcements.

Have I missed something in the upgrade? Any suggestions?

Thanks!