Update Combo Box for Entry in Another Form

[Solar.Paul]

I can't work out how to update the selections available in a combo box as follows:
I use a combo box in a main form to select a record (yacht)
If it's a new yacht then I use an event linked to a button to call another form to add the new Yacht
On exiting the Yacht Maintenance form I return to the main form
The combo box in the main form doesn't list the yacht i just added unless I exit and re-load the form

I'm not sure of the best way to refresh the combo box selections or main form without exiting.

Your recommendations would be much appreciated

 

[Mihail]

Open the form by using acDialog option and under this statement requery the combo:
DoCmd OpenForm, FormName,,,acDialog (this is not exatly the syntax)
Me.ComboName.Requery