Hi,
What king of code do you use ?
You should use client side code to do this,
with an asp:button :
<asp:Button ID="Button1" runat="server" CausesValidation="False" OnClientClick="javascript:self.print();return false;" Text="Button" UseSubmitBehavior="False" />
But it would be easier with a regular html button..
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Laurent Duveau
Silverlight MVP / Silverlight Insider
http://weblogs.asp.net/lduveau/