I am or was David hk129 (username). Today, I have encountered the SAME "sign in" issue as stated on another thread. I, after being asked to sign in several times although I have already signed in, managed to get to my profile and decided to change my email address hoping to eradicate the annoying "sign in" ISSUE. I thought I would receive an email requesting me to confirm my change of email address , but none forthcoming. I hope one of the admins will help me, ensuring that I will not be banned for "multiple profiles" violation. Thank you.