I've an issue with plesk. The ms sql database is installed correctly using mixed authentication (windows and sql mode). The login and password are right.If i work directly on the server ms sql works properly,but when i log into plesk and choose the db option in the server section i get this error: the database is not started or incorrect login and password supplied. If i go under service management Microsoft sql server is running,and i'm also sure that the login details are correct. What can i do?