Hi Deborah.
(Case Ref 00367460)
Inside the ActivInspire software, it will only allow one action to be performed on one item. If your image has already had the action of being revealed, a second action would be required to "hide" it.
If you would like to send us a copy of the flip chart so we can assist if this is not the case of having a second action, please fill in a KB form and attach the flipchart. Please use your reference number (367460) on the comments. Please also let us know what actions you are after performing.
Regards,
Adam
Promethean Technical Support