>Hello Naomi,
>
>Thanks for explaination but for some reason (don't know exactly why) it doesn't work.
>I'll assign the parent's DataSessionId in the init method and the problem is solved (hopefully).
>
>This is the first time I have to deal with DE therefore I'm not that familiar with it - thanks for all your help.
>

I may guess what is the reason (I dealt with somewhat similar issue once and resolved with Dragan's help). How exactly do you call this Lookup form? Is it a form (scx) or a class? Are you using form's manager?