The unread posts link counts as a search, you're still searching after all. If you're getting hit by that notice as soon as you hit the site, clear your cookies, cache and etc. Log out and back in again. If you hit unread posts, it brings the list, you click on a few in new tabs, then hit it again within 10secs, you'll get the error.
I get it at random times. I could be away from the site for 20 mins and come back and hit new posts and I get it. I cleared everything, and I still sometimes get it. I really dont understand it, but its no big deal. Just was making Brandon aware is all
Yup I have tried everything under moon. Multiple browsers, clearing cookies, cache, everything. Logging in and out. Nothing changes it, I really think it has to be a database type thing, but I dont know.