'For some months Thunderbird is not displaying all the messages received. Inbox says there are nearly 1600 messages in there somewhere, but only displaying about a dozen. Fresh reopening might suggest, say 8 emails have been downloaded, but perhaps only 3 of them show on Thunderbird. If I go on the net to my ISP (Hotkey /iPrimus) the missing ones show up there. I have tried removing and reinstalling Thunderbird without fixing the problem. I tried the repair files button but no difference. Any suggestions? Hotkey say it's not them. I can send a screenshot if needed