Hi Support, have been running Thunderbird for half a year, no issues, suddently last week, I get an error on one of my POP3 accounts in same Thunderbird program. Error reads "Kunne ikke skrive mailen i mailmappen. Sørg for at du har skriverettigheder til filsystemet, og at du har nok diskpladstil at kopiere mailmappen" According to my provider, it is a problem with my email program. I have tried to compress, archieve to generate more room, even restartet, program and computer. Still same issue. Still have 23 GB of free disk spare on my drive. Any ideas Marinus