Sometimes after writing an e-mail I are redirected to the Inbox and there is half of the messages or sometimes there is no message at all listed. Sometimes some of them are listed and others aren't. Logging out and logging back in solves the problem and all messages are listed again ???
I've got a similar problem. There is some problem with refreshing inbox.
What imap daemon are You using?
Have you enabled caching? Turn it off in the config, it will fix this.