Hi,

I'm new to ASP so sorry in advance for what's probably a very simple question.

I've got an image button displaying a small calendar picture.

<asp:ImageButton ID="imgCal1" runat="server" Height="29px" ImageUrl="~/App_Data/calendar1.PNG"
            OnClick="imgCal1_Click" Style="z-index: 113; left: 356px; position: absolute;
            top: 331px" Width="38px" />

When I'm in the page designer I can see the image fine, but as soon as I run the page I just see the standard red cross. I tried using a jpg and a gif version as well.

What am I doing wrong??? 

Sorry again if this is a stupid question!

Thanks.