Designer error on drag and drop

I've just started trialing lightspeed. I've created an empty VS2008 project and added a lightspeed model. II'm connecting to a SQL 2005 database. When I try and drag and drop a database table on to the design surface I get the following error:

 Exception while processing Server Explorer drag: System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.SqlServer.SmoEnum, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
File name: 'Microsoft.SqlServer.SmoEnum, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91'
   at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetDbCollation(String dbname)
   at Microsoft.SqlServer.Management.Smo.SqlSmoObject.GetDbComparer(Boolean inServer)
   at Microsoft.SqlServer.Management.Smo.SqlSmoObject.InitializeStringComparer()
   at Microsoft.SqlServer.Management.Smo.AbstractCollectionBase.get_StringComparer()
   at Microsoft.SqlServer.Management.Smo.SimpleObjectCollectionBase.InitInnerCollection()
   at Microsoft.SqlServer.Management.Smo.SmoCollectionBase.GetObjectByKey(ObjectKeyBase key)
   at Microsoft.SqlServer.Management.Smo.DatabaseCollection.get_Item(String name)
   at Mindscape.LightSpeed.Generator.Extraction.SqlServer2005.OpenConnection()
   at Mindscape.LightSpeed.Generator.Extraction.Provider`1.ExtractModel(Boolean pluralise)
   at Mindscape.LightSpeed.Generator.Integration.EntityBuilder.PopulateTypeModel(ProviderType providerType, String connectionString)
   at Mindscape.LightSpeed.Generator.Integration.EntityBuilder.AddTablesToModel(Model model, IDbConnection connection, IEnumerable`1 tableNames, IGenerationLog log)
   at Mindscape.LightSpeed.Generator.Integration.LightSpeedModelDiagram.<>c__DisplayClass4.<OnDragDrop>b__3(DragObject dragObject, IGenerationLog log)
   at Mindscape.LightSpeed.Generator.Integration.ServerExplorer.IfIsServerExplorerDrag(DragEventArgs e, DragAction action)

Could you try this using a current nightly build?  We have made significant changes to the SQL Server extraction code since RTM which improve performance and reduce the dependency on SMO.  You can get the currently nightly from http://www.mindscape.co.nz/Products/LightSpeed/nightlybuilds.aspx.  Thanks!

I will look into this because we still use SMO in a couple of places -- SmoEnum is usually installed as part of SQL Server but it looks like it might be missing in certain installation scenarios -- thanks for letting us know about it. 

 The nightly build seems to be working fine, thanks a lot.

I've got sql 2008 management studio on my local  machine so that might have been part of the problem.