Ouch, I should have thought of this earlier... Logged in 2-tier, resynchcronised en updated the x-references (datamodel & type hierarchy). Logged in 3-tier and the class fault had dissappeared.
Hope this helps anyone experiencing similar problems in the future. Mark ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/kGEolB/TM --------------------------------------------------------------------~-> Sharing the knowledge on Axapta. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Axapta-Knowledge-Village/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/