Hava a licensed and activated copy of Nitro pro v. 13.9.1.155. Every time I start get an "Error 401" and have to click through to proceed, annoying to say the least. Have tried updating and uninstalling and reinstalling to no avail. Also have to log in to Nitro online either a) before using app or b) before using any online feature like signing no matter whether I check the "remember me" check box or not.