De authorizing computer

I cancelled my adobe digital edition account and opened a new one with another email adress because I was unable to download borrowed books from my library.  So thinking I would have more success if I started fresh with a brand new account I cancelled the old one.  But I forgot to de- authorize my computer before cancelling!  So now it keeps asking me for the password to the closed account in order to de-authorize.  Any suggestions besides getting a new computer!