Printing from WebBrowser-Control gives other styles then from Internet Explorer

Hello!

I use an application with a form with a WebBrowser-Control in it.

I load the same webpage into the WebBrowser-Control und into an Internet Explorer -> they look exactly the same.

I print both with context-menu->print, and the result is that the prints are different (for example, the headlines have strange paddings in the printing from the WebBrowser-Control). Tested with several real and pdf-printers. The differences even appear in context-menu->print-preview. What could be the reason for it?

Strange enough, it seems to work 4 weeks ago when I last tested...