Hello, My email host (Epik) recently removed their calendar server, hosting9.epik.com, and switched it over to a new URL. I removed all my network calendars and saved passwords for hosting9.epik.com, and added the new calendars with the new URL. However, every few minutes I get a pop-up (four, actually, one for each calendar account) asking me to provide my credentials for hosting9.epik.com. Of course my credentials no longer work and these modal dialogs block progress until they are all closed via the "X". This process repeats every few minutes and makes Thunderbird virtually impossible to use. Can you please help me remove any/all references to hosting9.epik.com in my Thunderbird settings? I have removed the saved passwords and calendar accounts, and none of my email accounts' servers (IMAP and SMTP) refer to hosting9.epik.com. If there is somewhere else to look, please let me know. Is there some settings file I can edit on disk to remove these references, that are not available via the GUI settings? If not, I fear this may be a bug causing Thunderbird Calendar to connect to deleted servers. Thank you!