Thunderbird Display is malfunctioning. When I open Thunderbird the whole display in the client is huge, the left area where the local folders and inbox are displayed is huge. The window where all the emails are displayed is huge. The fonts are huge. The whole display looks like it's been magnified several times. I did click tools and then options and then went to the display tab, to try to fix it that way, but it does not function, it's like it doesn't work anymore. I have windows 10 and a 64 bit computer. I have used Thunderbird for a number of years, and it has been just the last year or so, that it has been nothing but trouble. I did try to add a screenshot below, but it didn't upload.