Hi, I have finally managed to escape MS 365 and wanted to use Apple Mail. Having problems with that so I set up Thunderbird (TB). Now all of a sudden all I get is a blank white screen with the spinning Apple beach ball. Forever. I have done all the usual things, computer on and off again, reinstall the TB app etc. The TB dock icon shows there is mail but I cannot get to it. I did search Google and this forum but only found a closed thread with no solution. Any help would be appreciated :-)