Since yesterday I can reply to the forum with my phone , but not on the desktop even if the cache is cleared and logged in and out. Someone PM'd me with the same problem, so it appears to be affecting others.

On the phone, it's a different problem. I can't click on things like my profile, but I can reply on the forum. Not sure what's up.

There recently was a slight change to the way cookies function. Don't worry about clearing cache, but rather delete all cookies for www.summitpost.org and summitpost.org and login again. That will fix it.

It still doesn't work part of the time (sometimes it does and soemtimes it doesn't). I'm not the only one either.