AJAX Simply Not Working

An error message or symptoms of what is not working would be helpful...

Try to set the property of ScriptManager EnablePartialRendering="true" like..

<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="true">

</asp:ScriptManager>

No error message appears.

When I click on the button on the page in the three textboxes the current date appears.

Change your UpdateMode property of UpdatePanel from Conditional to Always..

I gave up AJAX and a few days later I came back and it was working.

Maybe the cause of the problem was that a reboot was needed.

Now it is working fine ??

Yes! Me and my colleagues installed the AJAX framework and only in my computer there was this problem.

Good