When trying to access any function in Toad I get and error saying, "The application has encountered \ problem. We are sorry for the inconvenience".
See attached for a screen shot of the error message.
This message occurs when a new session is connected to and whenever a new window is opened in Toad.
Turn off the Toad Tips feature.
1) Close Toad.
2) Open the Toad.ini file, located in the Toad for Oracle/User Files directory.
3) Find the ShowToadTips entry. If it says ShowToadTips=1, change it to ShowToadTips=0.
4) If that solves it, then try setting it back to 1, and delete ToadTips.dat
Waiting for fix to be released in a future release Toad for oracle.