Hi Andy Green,
Please provide more details regarding this problem:
- How exactly do you open the window and set its height
- What is the doctype that you are using
Generally speaking, RadControls for ASP.NET AJAX are built upon the MS AJAX framework which uses XHTML-compliant doctype and our controls require such doctype to position and size correctly.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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