Hi,

I 've just installed SS 2008 Developer Edition in my machine. It is running
side by side with a SS 2005 Developer Edition.

After installed (the setup worked fine without problems) I got  the
following error when  I tried to connect to a server:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
Microsoft.SqlServer.Management.RegisteredServers.RegisteredServerException:
Unable to read the list of previously registered servers on this system.
Re-register your servers in the 'Registered Servers' window. --->
Microsoft.SqlServer.Management.Sdk.Sfc.SfcSerializationException:
Serialization output is invalid. ---> System.Xml.XmlException: 'None' is an
invalid XmlNodeType. Line 15, position 21.
  at System.Xml.XmlReader.ReadStartElement()
  at
Microsoft.SqlServer.Management.Sdk.Sfc.SfcSerializer.Deserialize(XmlReader
xmlReader, SfcObjectState state)
  --- End of inner exception stack trace ---
  at
Microsoft.SqlServer.Management.Sdk.Sfc.SfcSerializer.Deserialize(XmlReader
xmlReader, SfcObjectState state)
  at
Microsoft.SqlServer.Management.RegisteredServers.RegisteredServersStore.InitChildObjects(String file)
  --- End of inner exception stack trace ---
  at
Microsoft.SqlServer.Management.RegisteredServers.RegisteredServersStore.InitChildObjects(String file)
  at
Microsoft.SqlServer.Management.RegisteredServers.RegisteredServersStore.InitializeLocalRegisteredServersStore()
  at
Microsoft.SqlServer.Management.RegisteredServers.RegisteredServersStore.get_LocalFileStore()
  at
Microsoft.SqlServer.Management.UI.ConnectionDlg.ConnectionDialog.OnLoad(EventArgs e)
  at System.Windows.Forms.Form.OnCreateControl()
  at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
  at System.Windows.Forms.Control.CreateControl()
  at System.Windows.Forms.Control.WmShowWindow(Message& m)
  at System.Windows.Forms.Control.WndProc(Message& m)
  at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
  at System.Windows.Forms.ContainerControl.WndProc(Message& m)
  at System.Windows.Forms.Form.WmShowWindow(Message& m)
  at System.Windows.Forms.Form.WndProc(Message& m)
  at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
  at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
  at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg,
IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies **************
mscorlib
   Assembly Version: 2.0.0.0
   Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
   CodeBase:
file:///C:/WINNEW/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
AppIDPackage
   Assembly Version: 10.0.0.0
   Win32 Version: 10.0.1600.22 ((SQL_PreRelease).080709-1414 )
   CodeBase:
file:///C:/Program%20Files/Microsoft%20SQL%20Server/100/Tools/Binn/VSShell/Common7/IDE/AppIDPackage.DLL
----------------------------------------

After the error, I can connect to any server without problem but next time I
use the SSMS 2008 I get the same error and I lost my registered server 's
list.

Any idea how to solve this?

Thanks in advance

Adrian Garcia
INTERTRON