I download books from my local library using Overdrive and they have an expiration. However, they still show up in My Library (on the Nook Color) even though they can no longer be read.

Does anyone know how to delete them directly on the Nook - I assume that I could delete them manually via USB?

EDIT: Doh! It's done using ADE on my PC (but it would be nice to have a way to delete books without having to connect to a PC).