Hi, Since the last few updates of Thunderbird (not sure which version), I've had a display problem appear where mail folders and messages don't appear until I drag the mouse cursor over them, then they do (see image attached). Everything else works as expected. I tried running in Safe mode, problem disappears. I tried running in Safe mode, disabling addons and reseting toolbars, doesn't solve the problem. I've tried updating my display drivers, no change. Any ideas?