Finding Records Between Dates

Hello, i need to have my database find records that were entered between two dates. To do this i made a query that included the dates the records needed to be in between....[date1] and [date2]. Then i had the record dates be called [sent date]. i made my query and in the criteria for [sent date] i wrote
(Between [Date1] And [Date2])
when i enter the two dates [date1] and [date2] the query does not show the records that are between that date. why is this happening? is there and easier way? another way?
For example, say that i have records with their [sent dates] equaling 12/30/2004, 1/1/2005, 10/1/2005
i want to make it so that when the user inputs a records with dates [date1] and [date2], that those records will show up if their [sent dates] are between [date1] and [date2]. if [date1] is 1/1/2003 and [date2] is 1/1/2006, all of the records will show up.
if [date1] is 12/31/2004 and [date2] is 1/3/2005, then only the record with the date 1/1/2005 will show up.
how can i do this?