Thunderbird 社群討論區

I've downloaded Thunderbird in office PC and on PC at home. Almost I working in office PC or web mail but when I open Thunderbird at home, all my email lost in web mail and it's happened for such times. Is it a setting problem?! or, if it will be happen if using Android version ?! Thank you for your kindly assist!

I've tried all sorts of suggestions but I can't get the background on "messages" display to revert to the white it has always been till today! I don't recall making any computer changes that might have affected the background display on inbox messages and change it from what it has always been--black print on white background. Now I have a (light) grey background and it's not as easy to see or deal with messages. Please help. -- John Sigwald [edited email from community support forum]