Hi, I am using SQL 2005 on Server 2003. I created a linked server to an Oracle DB 8.x. I can select/update/delete from all tables in Oracle using the linked server with no problem. However when I use "Begin Transaction" or "Begin Distributed Transaction" before a delete/insert/update I receive the following error: Msg 7391, Level 16, State 2, Line 2 The operation could not be performed because OLE DB provider "MSDAORA" for linked server "cmsp21" was unable to begin a distributed transaction. Could anyone please help ? Thanks!