Automated UI Testing

When attempting the simplest automated UI test task I get the error:

FailedToPerformActionOnHiddenControlException: Cannot perform 'Click' on the hidden control. Additional Details:
TechnologyName: 'MSAA'
ControlType: 'Document'

The that is run is just clicking on link on the screen and the code generated is:

Public Sub Test5()
            Dim uIChromeLegacyWindowDocument As WinControl = Me.UIITVennersOnlineGooglWindow.UIChromeLegacyWindowWindow.UIChromeLegacyWindowDocument

            'Click 'Chrome Legacy Window' document
            Mouse.Click(uIChromeLegacyWindowDocument, New Point(563, 221))
        End Sub

Any ideas?