Thunderbird is very slow to respond to key commands. I have tested in both Win 7 PRO safe mode and Thunderbird safe mode with no improvement. Anti virus is removed and Windows Defender is disabled. Have emptied all trash folders. Total file size for ImapMail is about 6.5GB. Considering removal and re-install of Thunderbird unless someone has a better idea. Any assistance would be appreciated. Interestingly, the first couple of commands upon opening of the program seem to work normal but by the third it's all back to slow.