Have, until more recently, been able to respond to threads using iPhone, and can sign in and read messages, but unable to reply/respond to same. Am I missing something in site settings or security or is there an Iphone setting that would disable the ability to reply? Have Tapatalk, but it's somewhat restrictive in how it can be used, and prefer to use phone and direct site most often. This, obviously, is from laptop, and no issues with it. Any assistance greatly appreciated.