diff --git a/modules/actionbar.lua b/modules/actionbar.lua
index ee6e8dcb..cb0dffc1 100644
--- a/modules/actionbar.lua
+++ b/modules/actionbar.lua
@@ -3,13 +3,19 @@ pfUI:RegisterModule("actionbar", function ()
   function ActionButton_ShowGrid(button) return end
   function ActionButton_HideGrid(button) return end
 
-  Hook_ShowBonusActionBar = ShowBonusActionBar
+  if not Hook_ShowBonusActionBar then
+    Hook_ShowBonusActionBar = ShowBonusActionBar
+  end
+
   function ShowBonusActionBar()
     for i=1, 12 do getglobal("ActionButton" .. i):SetAlpha(0) end
     Hook_ShowBonusActionBar()
   end
 
-  Hook_HideBonusActionBar = HideBonusActionBar
+  if not Hook_HideBonusActionBar then
+    Hook_HideBonusActionBar = HideBonusActionBar
+  end
+
   function HideBonusActionBar()
     for i=1, 12 do getglobal("ActionButton" .. i):SetAlpha(1) end
     Hook_HideBonusActionBar()
diff --git a/modules/autoshift.lua b/modules/autoshift.lua
index f5baba5c..7ece93f4 100644
--- a/modules/autoshift.lua
+++ b/modules/autoshift.lua
@@ -3,9 +3,18 @@ pfUI:RegisterModule("autoshift", function ()
   pfUI.autoshift:RegisterEvent("UI_ERROR_MESSAGE")
 
   pfUI.autoshift.lastError = ""
-  pfUI.autoshift.hookCastSpell = CastSpell
-  pfUI.autoshift.hookCastSpellByName = CastSpellByName
-  pfUI.autoshift.hookUseAction = UseAction
+
+  if not pfUI.autoshift.hookCastSpell then
+    pfUI.autoshift.hookCastSpell = CastSpell
+  end
+
+  if not pfUI.autoshift.hookCastSpellByName then
+    pfUI.autoshift.hookCastSpellByName = CastSpellByName
+  end
+
+  if not pfUI.autoshift.hookUseAction then
+    pfUI.autoshift.hookUseAction = UseAction
+  end
 
   function CastSpell(spellId, spellbookTabNum)
     if pfUI.autoshift.lastError == pfLocaleShift[pfUI.cache["locale"]]['wantBattleStance'] then
diff --git a/modules/chat.lua b/modules/chat.lua
index d72ea392..21f2829e 100644
--- a/modules/chat.lua
+++ b/modules/chat.lua
@@ -176,7 +176,11 @@ pfUI:RegisterModule("chat", function ()
       end
     end)
 
-  Hook_ChatFrame_OnUpdate = ChatFrame_OnUpdate
+
+  if not Hook_ChatFrame_OnUpdate then
+    Hook_ChatFrame_OnUpdate = ChatFrame_OnUpdate
+  end
+
   function ChatFrame_OnUpdate (arg1)
     for i=1, NUM_CHAT_WINDOWS do
       getglobal("ChatFrame" .. i .. "UpButton"):Hide()
@@ -329,7 +333,9 @@ pfUI:RegisterModule("chat", function ()
   CHAT_YELL_GET = '[Y]' .. default
 
   for i=1,NUM_CHAT_WINDOWS do
-    local HookAddMessage = getglobal("ChatFrame"..i).AddMessage
+    if not getglobal("ChatFrame"..i).HookAddMessage then
+      getglobal("ChatFrame"..i).HookAddMessage = getglobal("ChatFrame"..i).AddMessage
+    end
     getglobal("ChatFrame"..i).AddMessage = function (frame, text, ...)
       if text then
         local Name = string.gsub(text, ".*|Hplayer:(.-)|h.*", "%1")
@@ -366,7 +372,7 @@ pfUI:RegisterModule("chat", function ()
           text = "|cff" .. pfUI_config.chat.text.timecolor .. left .. date(pfUI_config.chat.text.timeformat) .. right .. "|r " .. text
         end
 
-        HookAddMessage(frame, text, unpack(arg))
+        getglobal("ChatFrame"..i).HookAddMessage(frame, text, unpack(arg))
       end
     end
   end
diff --git a/modules/thirdparty.lua b/modules/thirdparty.lua
index f5b9d047..2a9b4298 100644
--- a/modules/thirdparty.lua
+++ b/modules/thirdparty.lua
@@ -26,7 +26,9 @@ pfUI:RegisterModule("thirdparty", function ()
 
     DPSMate_DPSMate:Hide()
 
-    pfUIhookDPSMate_Show = DPSMate_DPSMate.Show
+    if not pfUIhookDPSMate_Show then
+      pfUIhookDPSMate_Show = DPSMate_DPSMate.Show
+    end
     function DPSMate_DPSMate.Show ()
       pfUIhookDPSMate_Show(DPSMate_DPSMate)
       DPSMate_DPSMate:ClearAllPoints()