Every blue moon I run across a site whose browser incompatibility prevents someone from successfully logging into a site but now Safari is doing that for many different sites (thankfully not this one) and even sites that used to work! I get the log in screen, enter my user name/password, hit enter/login, and the login page just reloads. No error, no nothing. I've tried clearing the cache, resetting Safari, and turning off extensions. Still no luck. Any thoughts?