When I tried to authorize my Kobo ereader (which I have used many times before) from my desktop computer (Windows), I got the error message E ACT TOO MANY AUTHORIZATIONS. (I have ADE on two computers and two Kobos, within the limit.) The solution, according to an Adobe web page describing exactly this problem, is to ask Adobe to reset my authorizations. I asked yesterday; today they informed me that my account is "good to go" and I must "reauthorize the account." I erased authorization and then authorized. Same outcome. Erased, then closed and opened ADE, and authorized. No good. Uninstalled and reinstalled ADE 4.511 twice. Got a new message: E STREAM ERROR. Uninstalled and reinstalled again, and now I am back to TOO MANY AUTHORIZATIONS. What is the solution?