Single Sign On (SSO) in SAP B1 9.1 PL6

I configured theSSOinSAPB19.1 PL6 with the possibilityauthorizealsoinSAPB1. Userscanlog onusingbothSAPBusiness Oneuseraccountsand Windowsdomainaccounts.However, userswho do not havethe configuredSSO, afteruncheckingLog onwiththe CurrentDomainUsercheckboxnotsee anydatabase.If Imanuallytype the name ofthe databasethenIlog in usingthe userSAPB1.
Is this normalbehavior?WhenIuncheckLog onwiththe CurrentDomainUsercheckbox,thatmust not appearall databasesto which I haveaccess to?How it worksonyoursystems?

Thank you in advanceforyouranswers?