The Code Assistant Window may not be visible in the active screen of SQL Navigator, but may be displayed in the taskbar as active.
1. Go to Start | Run | Regedit
2. Go to HKEY_CURRENT_USER\Software\Quest Software\SQL Navigator\Docking Areas\Layout0\Floating\frmCodeAssist|TfrmCodeAssist
3. Delete this node
4. Restart SQL Navigator and enable the Code Assistant Window
**As a reminder, editing the registry can have serious consequences. Please contact your Sys Admin for assistance if you do not want to make registry changes on your own**