Downloading Library eBooks

I'm trying to download an eBook I've borrowed from local Library using OverDrive, but I get the error message below on Adobe Digital Editions (ADE).  I definitely don't have network connection problems and I've tried downloading using Firefox and Explorer, but get the same messgae.

Any help greatly appreciated!!

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IO Error on Network Request.

Please check your network connection and try again.

Network Path:

http://acs.contentreserve.com/ACSStore1/1515-1/6A7/7E3/CE/{6A77E3CE-18C1-491A-873D-A0D5F580206E}Fmt410.epub

Event Detail:

Error #2038

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