Can you connect from SQL Server Management Studio?

>Hi,
>
>I have been having an issue with a new customer as far as connecting VFP 9 application to SQL Server. Here are the details of the environment and the problem:
>
>The VFP 9 application resides on one VM and SQL Server on another VM box. My VFP 9 app connects to the SQL server via ODBC DNS-less connection. The SQL server is set for both Windows authentication and SQL Server authentication. The VFP 9 application connection string uses SQL Server authentication.
>
>When I RDP to the VM where VFP 9 app reside and start the VFP 9 application it connects to the SQL Server, no problem.
>
>When customer, who's desktop is on the network, starts the application, connection fails. And when I look at the SQL Server error log I don't even see entries of his attempt and failure to connect.
>
>So I thought it was a firewall issues. But the local IT guy says that the Windows firewall is Off (on the desktop where they are trying to start the app).
>I asked them to ping the SQL Server box IP from the command prompt of the desktop and they say that works.
>
>What else could I ask them to check on the desktop? Any suggestions?
>
>TIA