Event disappearing after start date

Hi! We have an event that has a start date (Jan 17, 2014) and an end date (Jan 26, 2014). It disappeared from our events list after Jan 17th. If I switch it to starting on today's date, it reappears, but as soon as tomorrow comes (and the start date is before the current date) the event disappears again. Can you tell me how to fix this?