How to play podcasts oldest to newest on shuffle

I have an iPod Shuffle--one of the newer ones with the clip. I listen to podcasts on it and they have always played oldest to newest. Sometime recently it has changed--they now play newest to oldest, which obviously is less than ideal with podcasts. I've tried everything I can think of, including changing the settings for the podcasts in iTunes (not the sync screen) to play oldest to newest. No matter what I do, they still end up playing in reverse chronological order when I play them on my iPod. I'd appreciate any tips on how to fix this. Thanks!