User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:188.8.131.52) Gecko/20070914 Firefox/184.108.40.206 Build Identifier: version 220.127.116.11 (20070728) This is a very serious problem! When I start Thunderbird, the opening window showing my inbox is pretty much unreadable. About every other line appears to be overwritten with bold text. This sometimes happens in Firefox. I can't cut and paste to show the problem. I'm sure you have a solution, but searching for this bug and reporting it is much too technical. I can't use Thunderbird if this problem doesn't go away. Reproducible: Always Steps to Reproduce: 1. Start Thunderrbird 2. 3. Actual Results: Inbox shows garbage. Expected Results: Inbox is readable.