Getting "Stream Read Error" (4289462)

Getting "Stream Read Error" and the general Toad program becomes slow and unresponsive.
This error shows when

* Connecting to the database

OR

* When Auto Optimize is selected for a query

Problem caused by corrupt Toad user files.

Perform a reset of your Toad for Oracle user files.

Go to the Utilities Menu | Copy User Setting | Choose “Create a clean set of user files from base installation”.

This will reset Toad to factory defaults. Re-test to determine if resolved.