On 21/02/2020 12:42, Carsten Schoenert wrote: > Hello Bob, > > Am 19.02.20 um 08:30 schrieb Bob Ham: >> It appears that the most recent update to lightning has caused serious >> problems in the thunderbird UI where lightning's UI elements do not >> work correctly and display large sections of what look like XML with >> error markings. In particular, more than half of the main window is >> lost to a pane showing this XML-like badness which makes the program >> very difficult to use. > > have you tried to follow these steps? > > https://wiki.debian.org/Thunderbird#Bug_Reporting_.2F_Issues
I had tried most of them, yes. I disabled the lightning plugin and checked that it was causing the problem (that's why I filed the bug against the lightning package.) I hadn't tried creating a fresh profile. Having done that now, it does seem that lightning works OK with the fresh profile. There's still a problem though; my existing profile contains a lot of information I don't want to lose or have to manually recreate, like message filter rules and so on. Bob