Kyli Topaz

I'm using Firestorm 4.0 but this happens when I use Firestorm or SL3.0 so apparently it's not specifically a viewer issue (although I could be wrong). Whenever one of the groups I'm in sends out a group notice, I receive the notice twice. It only happens with one group and just started doing this about a week ago. I have left the group and rejoined and it still does it. Anyone know of this happening and if so, how to correct it? Thank you