wdement

I am getting the error message:

This copy of the Microsoft Reader cannon open this title. You may not have the appropriate rights for viewing this content. If you are the rightful owner of this title, please try reactivation your Microsoft Reader. See Help for instructions

All of my free books work. I did pay for this book, and I tried reactivating my reader and I deleted the book from my computer and tried re-downloading it. It opens on the desktop, but not on the ax. Any suggestions?

Thanks
Wendy