[Dovecot] quota and postfix virtual users

[gbotero at emailforall.no-ip.org]

hi guys, anyone have a virtual server working with postfix + dovecot +
roundcube + mysql + virtual domain + virtual users and quota working
because the quota is not good, the calculation is wrong i need to delete
the maildirsize file to force recalculate, how can i do? the email send and
receive fine the virtual users and domain users is fine....... help


postfix 2.3.3
dovecot 1.2.11
roundcube 0.3
mysql 5.0.7 

i need to solve
this please