trouble when i connect to sql server

[froas]

i have the follow error mesage
i follow this tutorial
http://www.sparxsystems.com.ar/download/ayuda/index.html?connecttosqlserver.htm
but when i do open
show this message
Enterprise Architect has experienced a network error and will close down

anyone know why this could be happend?

[hd]

Have you set up a repository and transferred a model to it as descrbed here...
http://www.sparxsystems.com/enterprise_architect_user_guide/projects_and_teams/upsizingtosqlserver.html