Hi, The uploaded image shows the problem. When I first open Tbird and the Reminder popup opens, all reminders look normal - black text on a white background. As soon as I do anything, in Tbird or another application, the top reminder gets a very dark blue background, making it unreadable. This has been going on since the release before 128 (124?). I waited until the next release in case it was just 124. Clearly, it isn't. I have opened Tbird in Troubleshoot mode but the issue remains. The only possibility I can think of is that I have too many emails. That's a very long, unrealistic guess so any others would be greatly appreciated! Thanks, sivarik