Yes; I checked the log file , but there is nothing about roundcube, however I have these messages for all accounts, these account are under root account, not a reseller:
2009-11-26 06:28:19 info [mysqladmin] Not updating privileges for yeadrto (reseller login and no password specified in ~/.my.cnf)
2009-11-26 06:28:40 info [mysqladmin] Not updating privileges for imporad (reseller login and no password specified in ~/.my.cnf)
2009-11-26 06:28:55 info [mysqladmin] Not updating privileges for espacego (reseller login and no password specified in ~/.my.cnf)
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Thank you for helping me.