hi...i need some help regarding Form_Activate...

here goes...
see, i have this form form1(mdichild=true)...it is open or its is visible..then i open another form form2(mdichild=false) and do some processing,after i close form2...form1 is still visible but it will not pass to Form_Activate event anymore...i need to re-initialize some variables in form1....any ideas how to do it???

thanks a lot...