Login Problems with auto_create_user = FALSE

Hi,

i got a little problem with the config of auto_create_user = FALSE.

i used roundcube 2 month with auto_create_user = TRUE and now i've turned it to FALSE and get this Error message:

Error Message: Quote

• CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX-REFERRALS NAMESPACE

UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES IDLE STARTTLS ANNOTATEMORE cp01 OK Completed Tried PLAIN: Resource id #32

in the database all the needet data is avalible, because of the auto_create_user = TRUE

maybe somebody knows the problem, no errors are reported to the log file. only this message is showd if i set loglevel to 8

thx