Update Navision Attain 3.10 to 4.0sp1 Error

Hi, I’m using Navision Attain 3.10 on sql server. The database have 210Go and i have 75 users in Navision all day. I have some performance problem. I want to install Navision 4.0 client on 3.10 db. I’m restore an test db and i open it with the 4.0sp1 client. I convert the db and i have the following error: The XXX table does not exist any longer. The convertion close and the db is not converted. Anyone can help me.

turcpa, the forum has moved (there is a message on just about evry page). please re-register at http://dynamicsusers.org and repost the question there. thanks.