[Dovecot] question mailbox format

[Charles Marcus]

You're making it difficult to try to help, by not answering the 
questions or providing requested information...

Again - was that config output you provided the FULL output of dovecot 
-n? It looked incomplete to me...

Also, you only provided one line from a log... and it said 'permission 
denied' - this should tell you something... but it is hard to tell what 
because you only provided one line of the log...

> With Version 0.99, on nother dist. all works fine with same settings

You do realize that the config file for 1.0 is DIFFERENT than 0.99...

And you never mentioned that you had UPGRADED from an earlier version - 
this is helpful to know...

Did you read http://wiki.dovecot.org/UpgradingDovecot ?