Hi All I've moved to new PC recently and have reinstalled Thunderbird. On my login I created a new Profile and all seems good (I personally not used TB for a year or so and was working off Webmail). However another member of the household is having issues..... I migrated their Profile over from the previous PC as per this https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer I then moved the Profile to a Data drive on the new PC as per this http://kb.mozillazine.org/Moving_your_profile_folder_-_Thunderbird When I open TB up I was able to see the Inbox as per the last login so all seemed good. I closed it down and reopened TB I then got the blank scree (as shown), I finished up fixing it by deleting the profile and bringing a new copy (off the USB drive) to the new PC and it seemed OK (once). The other user then opened up TB next a few days later and got the blank screen again I click on the menu options and they open but there is no Text...... Any assistance is gratefully received.....obviously I need to be aware that I'm using TB under my login aswell.......