NAS problem with SQL

Hi, I am trying to install the ADCS system (NAS, VT100 and CSS) on a Win 2000 server with Navision 3.70a running on a SQL database. The VT100 and CSS starts without any problems but when starting the application server I get the following error message in the event viewer: “The BLOB Size field on the Object table does not exist in the SQL Server table or view.” Anyone that have experienced the same problem and could help me solve this?