Hello,
The problem with the Hive connection is a known bug (QAT-10557). The fix will be officially released in TDP 4.3, but if you don't want to wait you can get the fix included in 4.2 from the following link:
http://community-downloads.quest.com/toadsoft/tda/ToadDataPoint_pro_4.2.0.279.zip
Libor