About a week ago (I wasn't having the issue prior to this) I stopped being able to print e-mails off. All the fixes I have found seem to relate to changing the printer, or the margins. When I click "Page setup", it too comes up blank. Moving the mouse down it creates three black rectangular boxes. Some weird error for sure. No matter which printer I pick (even XPS print) it comes out blank in the preview and the page prints blank. I am able to print fine from other Windows programs, so the issue seems to be isolated with Thunderbird. Thank you in advance for any assistance!