Your problem is that the form you are adding is named "Form1" and you already have a form named "Form1".
Change the class definition for one of the forums to "Form2" or anything else you would like.
To open a form from a button on another form, this is the code:
'Assuming that the form you want to call is named Form2
Dim a as new Form2
a.Show()
I'm pretty sure the above is right.. I'm spending to much time on ASP.NET Development, and C# Windows Form development ::blushes::
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