goofy crap happening

[55chevy]

Rob.. I've been experiencing some annoying problems with the site. Not sure if anyone else is having the same problems or not. Here is what's happening. New threads/posts are showing up highlighted as they should, but after I view them some will show up as new again after I've already read/cleared them. This happens after leaving the site and coming back later. It doesn't happen every time and it just jumps around. 1 post will keep showing up highlighted as new after I've cleared it 2 or 3 times

I know it's not the beer