I am using Thunderbird 102.0.3 (64-bit). I now have vertical lines on the inbox of one of my accounts. When I copy the inbox to the trash folder, the lines follow. The lines look like very small bar codes. I have attached a screenshot of the issue. I tried uninstalling and reinstalling, but no joy. I also resetting toolbars & controls, but that did not help either. Also, I can't customize my toolbars anymore. When I try this, there is only a "hand" mouse cursor, and I can't make any changes. Does anyone have an idea of what i may try? Thank you!