WowAce

As the title says, Bartender spells will light up when nearby players are casting a spell which are on my bars. I've tried multiple things to stop this from happening such as turning off all other addons, deleting all existing addon files and redownloading them and starting from scratch. I've even started scratch with a new wow wrath download to see if there was something corrupt with my game files which caused this. However nothing resolved the issue, i keep seeing the light up (as it would if you casted the spell yourself) when others cast the same ability on my bar. If you have any information on how to make this stop, it would be greatly appreciated as i'm certain it is causing lag because it is attempting to register other players casts nearby.