Setting visible property on a picture

[Maxine1010]

Hi,

I have a main form (Patient details) with a tab control with a number of pages. On one page of the tab control I have a subform (Additional Info) which once data has been added, I would like a picture to appear on the main form, informing people at a glance.

I have created a macro and attached it to the main Form's 'OnCurrent' event but so far it hasn't worked, the image does not appear. BUT for some bizarre reason, when I change the action to a message box appearing it does work.....please help.......

Macro

Condition: IsNull ([Forms]![Patient Details]![Additonal Info]![Date])
Action: SetValue
Item: Forms![Patient Details]![Additonal Info]![Image].Visible
Expression: No

I already checked through past messages and looked through the help but I'm now completely baffled!!!!!

Thanks

Maxine