> Exists there a way to let a IB_Grid work with IB_Cursor ?

No, but you could try setting KeyLinksAutoDefine to false and leave the
KeyLink property blank. This should help to resolve your troubles.

Also, providing an alias for all of the columns you are adding into your
query that are named the same will help as well.

HTH,
Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com