Hello,
Unfortunately I’m not able to reproduce the problem. May I ask you, what database connections do you use?
You could try to solve the problem by removing the files Connections.xml and Settings.xml located in C:\Users<username>\AppData\Roaming\Quest Software\Toad Data Point 4.0.
But please be aware that you will lost your settings and database connections. You can backup the files and then import the connections from it.
Libor