> Empty string ('') is not a null. Try explicitly passing NULL, viz.
> IB_Connection1.AlterUser(uaAddUser,Edit1.Text,Edit2.text,NULL,NULL
> ,NULL,NULL);

I did but it gives me an variant error.

>
> Have you been able to log in to your Linux databases using this sysdba
> password *at all*? What happens if you set PasswordStorage to psNone and
> set LoginPrompt true?

I am able to login and add data and do everything else. The only thing that
does
not work is the alteruser procedure.

Groete
Gerhardus