I haven't done anything different (that I know of). Suddenly, Thunderbird won't download messages. I can send messages but can't download. I get the message that Thunderbird has connected to my ISP ("connected to pop.earthlink.net"), but then no messages are downloaded . I have webmail with my ISP, and I can get my messages on webmail, but suddenly Thunderbird won't download messages to my computer. I tried installing the latest version of Thunderbird, but that didn't help. Any ideas? Thanks!