Updating Form==Query==Report

I have a date form. It has 2 text boxes that pass starting and ending dates
to a query to pull appts from that time period. If the report is left open
and the dates change in the date from, I have to manually refresh the report.
Is there a way that when I click off of the 2nd text box (ending date on
date form) that the data updates when I click back on the open report that it
all updates (Rpt.GetFocus = event) perhaps? The reason I ask is that the
reports are pulled up evey hour and the operators would like the already open
report to update once the form gets focus. This is probably not the right
method, so i am asking for any offered solutions. Thanks for all help!

Dan