Removing DRM from EPUB (B&N), Error:Problem decrypting session key

[any ANONYMOUS forum user]

Hello-
I have read through all the DRM removing threads for B&N EPUB ebooks, and I am pretty familiar with what needs to be done. However, I just bought a brand new best seller off the B&N website yesterday and I cannot crack it. I keep getting the same error message: "Error: problem decrypting session key". I have followed all the instructions to the letter. I have installed and uninstalled ADE 1.7.2 and then I tried 1.71. I have tried numerous versions of ineptkey and ineptepub, all yielding the same results. My question is this: what should I try next? What versions of each of the above- mentioned program/scripts work best together? I can't seem to get the right combination. Is there anything else someone can suggest? I don't know where to go from here. Thanks in advance for your help.