Data Type incompatibility between NAV. & SQLServer

Can anybody help. I’ve installed Navision 4.00 on SQL Server 2005. After logging on to my database from Navision, i got this error : The Session Table contains a Microsift Business Solution Navision datatype that is not compatible with the SQL Server Data type: Field: Wait Time (ms) Type: Integer SQL Type: BIGINT

Are you using sp1 ?. Navision 4.00 (not sp1) doesn’t support sql server 2005

This was a silly mistake by microsoft, but if you use SSMS to change the database compatabilty mode to 80 then it shoudl work. Paul Baxter