We have Backup Exec 9.1 on one server, and we're trying to backup SQL 2005 databases on a remote server. We were told by our reseller this would be OK, as long as we followed this procedure

What you can do is buy a new SQL agent for 10.1, and this can be downgraded to BE 9.1. This will work with V9, therefore negating the need to upgrade your customers whole environment. To get the downgrade key, you will need to call Symantec sales

This is what we did. Now, when we try and select the SQL 2005 databases for backup we get the following error

An error was encountered while trying to browse the contents of SQL-2005\CALEDONIAN. A network connection to the server could not be established.

Thanks
Graham