如何告诉Linq使用哪个数据库版本

i am using sql server 2005 and I think Linq generating queries for a different database version. I got the query string that linq was producing and pasted the linq directly in SQL Server Management studio and it failed with many errors. But the query works well if Linq is used. Any ideas what could be going on. If linq needs to know what database version to use how do I do that?i am using sql server 2005 and I think Linq gen