Where is the Startup button in the Database | Monitor | Instance Manager option?
This option has disappeared in Toad For Oracle 10.1.
This option has been removed.
The reason for removing this was that it didnt work properly and it was not possible to fix that .
This is because you cant connect to a database through the listener when the database is shutdown. That means that the only way to start up a database is to be on the server (or telnetted into it) so you can connect without the listener.
So the only option we had was to remove this button.