How to adjust Sendto(Names) Field

I am using mailfoward command to send a document as a mail. Before I call the command I am populating the Sendto field of the memo with a list of values(I am using Dblookup to get the list of values). However in the UI when the memo opens it is displaying only the first value of the list in the SENDTO field. Anybody has seen this before or suggestions please.

Thanks…

Subject: post your code