local inInstance, instanceType = IsInInstance()
function enableRR(self, event)
  if inInstance and (instanceType == "raid" or instanceType == "party") then
    raidbuff_reminder:Show()
  else
    raidbuff_reminder:Hide()
  end
end

local f = CreateFrame("FRAME")
f:RegisterEvent("ZONE_CHANGED_NEW_AREA", enableRR)
f:RegisterEvent("PARTY_MEMBERS_CHANGED", enableRR)
f:RegisterEvent("RAID_ROSTER_UPDATE", enableRR)