Ok,

So, I'm a .NET/AJAX web application (VB.NET) and in one of my content
screens, among a barrage of controls and panels,  I have a File Upload
control... nothing fancy.
Below the control there is a standard button called aFile_btn.

This is the click event of aFile_btn:
---------------------------------------------------------------
         Protected Sub aFile_btn_Click(ByVal sender As Object, ByVal e As
System.EventArgs)
                      If FileUpload1.PostedFile.FileName <> "" Then
                      End If
         End Sub
--------------------------------------------------------------

Simple? I thought so. But when I run the app and click aFile_btn I get the
following error on the "If" line:

Object reference not set to an instance of an object.

You think that's frustrating? there's more. If I copy and paste the exact
code behind the button onto a fresh page, with only a FileUpload control and
a Button, it works perfectly...........

Any ideas?