Linked server oracle (msdaora) problem after /3GB switch boot.ini sqlserver 2005

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Failed to retrieve data for this request. (Microsoft.SqlServer.SmoEnum)
 
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For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&LinkId=20476
 
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Program Location:
 
   at Microsoft.SqlServer.Management.Smo.Enumerator.Process(Object connectionInfo, Request request)
   at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.NavigableItemBuilder.BuildDynamicItemWithQuery(IList nodes, INodeInformation source, INavigableItem sourceItem, String urnQuery, Boolean registerBuilder, Boolean registerBuiltItems)
   at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.NavigableItemBuilder.BuildDynamicItem(IList nodes, INodeInformation source, INavigableItem sourceItem, IFilterProvider filter)
   at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.NavigableItemBuilder.Build(INodeInformation source, INavigableItem sourceItem, IFilterProvider filter)
   at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.NavigableItem.GetChildren()
   at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.SummaryView.get_Items()
   at Microsoft.SqlServer.Management.UI.VSIntegration.AppIDPackage.ListViewVirtualStorage.CopyItems(ISummaryView summaryView)
   at Microsoft.SqlServer.Management.UI.VSIntegration.AppIDPackage.ListViewVirtualStorage..ctor(ISummaryView summaryView, List`1 columnDescriptors)
   at Microsoft.SqlServer.Management.UI.VSIntegration.AppIDPackage.RightPaneListViewer.PopulateView()
 
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An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
 
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Program Location:
 
   at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteReader(String sqlCommand)
   at Microsoft.SqlServer.Management.Smo.ExecuteSql.GetDataReader(String query)
   at Microsoft.SqlServer.Management.Smo.DataProvider.SetConnectionAndQuery(ExecuteSql execSql, String query)
   at Microsoft.SqlServer.Management.Smo.ExecuteSql.GetDataProvider(StringCollection query, Object con, StatementBuilder sb, RetriveMode rm)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillData(ResultType resultType, StringCollection sql, Object connectionInfo, StatementBuilder sb)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.FillDataWithUseFailure(SqlEnumResult sqlresult, ResultType resultType)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.BuildResult(EnumResult result)
   at Microsoft.SqlServer.Management.Smo.SqlObjectBase.GetData(EnumResult erParent)
   at Microsoft.SqlServer.Management.Smo.Environment.GetData()
   at Microsoft.SqlServer.Management.Smo.Environment.GetData(Request req, Object ci)
   at Microsoft.SqlServer.Management.Smo.Enumerator.GetData(Object connectionInfo, Request request)
   at Microsoft.SqlServer.Management.Smo.Enumerator.Process(Object connectionInfo, Request request)
 
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Cannot initialize the data source object of OLE DB provider "MSDAORA" for linked server "CBSABS". (.Net SqlClient Data Provider)
 
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For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.3282&EvtSrc=MSSQLServer&EvtID=7303&LinkId=20476
 
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Server Name: bp02
Error Number: 7303
Severity: 16
State: 1
Procedure: sp_tables_ex
Line Number: 41
 
 
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Program Location:
 
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()
   at System.Data.SqlClient.SqlDataReader.get_MetaData()
   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteReader()
   at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteReader(String sqlCommand)