I've just tried to add the code to a second page and it doesn't open the window.
The original code that I added continues to work just fine and I can't work out why the window isn't opening.
The line:
ScriptManager.RegisterStartupScript(this, this.GetType(), "key", "window.open('PrintPage.aspx','_blank','location=0,toolbar=0,titlebar=0,menubar=0,resizable=1,scrollbars=1,status=1');", true);
is the same as I used on the other page.
When stepping through the code the line 'appears' to be executed but I don't get the new window.
Is there something I could have left off this second form which may not be immediately obvious?
Any Suggestions gratefully received