Help! I can't open a Classic Form in the RTC

<?xml version="1.0" encoding="UTF-8"?>
<appSettings>
	<!-- 
    The network protocol used to access the database.
    Valid options: Default, NamedPipes, Sockets
  -->
	<add key="NetType" value="Default"></add>
	<!-- 
    Name of the database server to connect to.
  -->
	<add key="DatabaseServer" value="TESTPC\SQLEXPRESS"></add>
	<!--
    Name of the database to connect to.
  -->
	<add key="DatabaseName" value="Nav2009_PPS_DEMO"></add>
	<!--
    Name of the Microsoft Dynamics NAV Server instance to connect
    to (for client) or listen on (for server).
  -->
	<add key="ServerInstance" value="DynamicsNAV"></add>
	<!-- 
    The listening TCP port for the Microsoft Dynamics NAV Server.
    This is part of the server's URL.
    Valid range: 1-65535
  -->
	<add key="ServerPort" value="7046"></add>
	<!-- 
    The listening HTTP port for the Microsoft Dynamics NAV 
    Business Web Services.
    This is part of the web service's URL.
    Valid range: 1-65535
  -->
	<add key="WebServicePort" value="7047"></add>
	<!--
    Turns on or off the https for Web Services
  -->
	<add key="WebServiceSSLEnabled" value="false"></add>
	<!--
    Maximum permitted size of a Web Services request, in kilobytes
  -->
	<add key="WebServicesMaxMsgSize" value="512"></add>
	<!--
    Maximum time in seconds a call from the client to the server
    may take to return.
    Time span format: [dd.]hh:mm:ss[.ff]
        dd: days
        hh: hours
        mm: minutes
        ss: seconds
        ff: fractions of a second
    Or "MaxValue" to indicate there is no timeout.
  -->
	<add key="OperationTimeout" value="MaxValue"></add>
	<!--
    The security services used to protect the client/server data stream.
    Valid options: EncryptAndSign, Sign, None
  -->
	<add key="ProtectionLevel" value="EncryptAndSign"></add>
	<!--
    Maximum number of concurrent client calls that can be active on the 
    Microsoft Dynamics NAV Server. To disable this setting set the value
    to "MaxValue".
  -->
	<add key="MaxConcurrentCalls" value="40"></add>
	<!--
    Sets the grace period within which the client can reconnect to a
    running session.
    Time span format: [dd.]hh:mm:ss[.ff]
        dd: days
        hh: hours
        mm: minutes
        ss: seconds
        ff: fractions of a second
    Or "MaxValue" to indicate there is no timeout.
  -->
	<add key="ClientReconnectPeriod" value="00:10:00"></add>
	<!--
      Threshold for when to start compressing data sets to avoid that they 
      consume prohibitive amounts of memory.
  -->
	<add key="CompressionThreshold" value="64"></add>
	<!--
      Sets the Metadata Provider cache size (in number in objects cached). 
      Set to 0 to disable cache.
  -->
	<add key="MetadataProviderCacheSize" value="150"></add>
	<!--
      Limits the size of files that can be uploaded in order to avoid out of memory errors. This value is in megabytes.
  -->
	<add key="MaxUploadSize" value="5"></add>
	<!--
      With the EnableDebugging flag set to true the Microsoft Dynamics NAV Server
       will start with debugging mode enabled.  This mode has three main functions:
      1)	Upon first connection by a RoleTailored Client all C# for that application
          will be generated.  
      2)	C# files will be persisted between server restarts.
      3)  Application Objects will be compiled with debug information.
  -->
	<add key="EnableDebugging" value="false"></add>
</appSettings>

kine wrote:

TESTPC\SQLEXPRESS means that you are using named instance, and this is the problem which azwierzchowski described... ;-)