Kevin,

>I'm creating connections to 2 databases, each on different servers.
>
>The first connection works. The second errors with:
>Connectivity error: [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user 'sa'.
>Reason: Not associated with a trusted SQL Server connection.


The error means that SQL Server is set to Windows Authentication only.

>
>When I look at login 'sa' in the Enterprise Manager, the password is filled in
>with a 10 character string.
>
>I did not set it, so I'm not sure whats going on.

For security reason the Enterprise Manager will always show password this way regardless what's actual length of it.

>I'd like it to take the Windows login info.

I'm not sure what you mean. You can either use SQL Server login or use WIndows Authentication.