ok i have 45 rep points but if you look above my name theres only one most are neutral but i know theres a few green ones in there so i wonder why it hastn changed
If they have a purple/grey/blue square next to it, it means it's neutral rep and doesn't actually add any points to your overall reputation score. A green square means it's adding points to your reputation, but you need (I think) 100 points to get to your next rep bar.