Movie Rental Problem

I have rented a movie from my 5th generation iPod and my internet got turned off during the download, now the movie will not download. In my rental movies the rental is shown as being grey'd out. When I try opening it there is a prompt "You have already rented this but it has not been downloaded - Go to downloads to manage your downloads", but when I do the rental is not showing up at all. It becomes an endless loop and I am very frustrated! Any help would be appreciated?