diff --git a/mmwnd/mmwnd/mmwnd.cpp b/mmwnd/mmwnd/mmwnd.cpp
index 2b1d48e..904c089 100644
--- a/mmwnd/mmwnd/mmwnd.cpp
+++ b/mmwnd/mmwnd/mmwnd.cpp
@@ -107,6 +107,14 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM param1, LPARAM param2) {
       log(_T("hook reinstalled"));
       break;
     }
+    case ID_POPUP_IGNORETOOLARGE: {
+      bool ignore_too_large = false;
+      profile() >> PROFILE_ENTRY_IGNORETOOLARGE >> ignore_too_large;
+      ignore_too_large = !ignore_too_large;
+      profile() << PROFILE_ENTRY_IGNORETOOLARGE << ignore_too_large;
+      log() << _T("toggle ignore too large: ")
+            << ignore_too_large << std::endl;
+    }
     case ID_POPUP_SHOWTRAYICON:
       log(_T("hide tray icon"));
       if (the_notify_icon().uninstall()) {
@@ -133,6 +141,10 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM param1, LPARAM param2) {
         profile() >> PROFILE_ENTRY_RESTRICTMOVEMENT >> restrict_movement;
         ::CheckMenuItem(popup, ID_POPUP_RESTRICTMOVEMENT,
                         restrict_movement ? MF_CHECKED : MF_UNCHECKED);
+        bool ignore_too_large = false;
+        profile() >> PROFILE_ENTRY_IGNORETOOLARGE >> ignore_too_large;
+        ::CheckMenuItem(popup, ID_POPUP_IGNORETOOLARGE,
+                        ignore_too_large ? MF_CHECKED : MF_UNCHECKED);
 
         ::SetForegroundWindow(hwnd);
         POINT pt;
diff --git a/mmwnd/mmwnd/mmwnd.rc b/mmwnd/mmwnd/mmwnd.rc
index 5c60479..5720b12 100644
--- a/mmwnd/mmwnd/mmwnd.rc
+++ b/mmwnd/mmwnd/mmwnd.rc
@@ -57,6 +57,7 @@ BEGIN
     POPUP "popup"
     BEGIN
         MENUITEM "restrict &movement",          ID_POPUP_RESTRICTMOVEMENT, CHECKED
+        MENUITEM "ignore too large",            ID_POPUP_IGNORETOOLARGE, CHECKED
         MENUITEM "show &tray icon",             ID_POPUP_SHOWTRAYICON, CHECKED
         MENUITEM "&reset",                      ID_POPUP_RESET
         MENUITEM "e&xit",                       ID_POPUP_EXIT
diff --git a/mmwnd/mmwnd/profile.h b/mmwnd/mmwnd/profile.h
index bfe080c..66201c3 100644
--- a/mmwnd/mmwnd/profile.h
+++ b/mmwnd/mmwnd/profile.h
@@ -2,9 +2,11 @@
 #define MMWND_PROFILE_H_INCLUDED
 
 #include "../common/profile.hpp"
-#define PROFILE_ENTRY_NOTIFYICON  \
+#define PROFILE_ENTRY_NOTIFYICON \
   gnn::ini_profile::entry(_T("settings"), _T("notify_icon"))
-#define PROFILE_ENTRY_RESTRICTMOVEMENT  \
+#define PROFILE_ENTRY_RESTRICTMOVEMENT \
   gnn::ini_profile::entry(_T("settings"), _T("restrict_movement"))
+#define PROFILE_ENTRY_IGNORETOOLARGE \
+  gnn::ini_profile::entry(_T("settings"), _T("ignore_too_large"))
 
 #endif // !MMWND_PROFILE_H_INCLUDED
diff --git a/mmwnd/mmwnd/resource.h b/mmwnd/mmwnd/resource.h
index 25092ba..599d7b7 100644
--- a/mmwnd/mmwnd/resource.h
+++ b/mmwnd/mmwnd/resource.h
@@ -8,13 +8,14 @@
 #define ID_POPUP_SHOWTRAYICON           40002
 #define ID_POPUP_RESTRICTMOVEMENT       40003
 #define ID_POPUP_RESET                  40004
+#define ID_POPUP_IGNORETOOLARGE         40005
 
 // Next default values for new objects
 // 
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NEXT_RESOURCE_VALUE        103
-#define _APS_NEXT_COMMAND_VALUE         40005
+#define _APS_NEXT_COMMAND_VALUE         40006
 #define _APS_NEXT_CONTROL_VALUE         1001
 #define _APS_NEXT_SYMED_VALUE           101
 #endif
diff --git a/mmwnd/mmwndhook/mmwndhook_impl.h b/mmwnd/mmwndhook/mmwndhook_impl.h
index cb4ff33..a2e3533 100644
--- a/mmwnd/mmwndhook/mmwndhook_impl.h
+++ b/mmwnd/mmwndhook/mmwndhook_impl.h
@@ -125,6 +125,22 @@ bool adjust_pos(HWND hwnd, UINT msg) {
 
   if (pt.x == rect.left && pt.y == rect.top) return false; // no change
 
+  bool ignore_too_large = false;
+  profile() >> PROFILE_ENTRY_IGNORETOOLARGE >> ignore_too_large;
+  if (ignore_too_large) {
+    POINT mtl = { mi.rcWork.left, mi.rcWork.top };
+    POINT mbr = { mi.rcWork.right, mi.rcWork.bottom };
+
+    // ignore too large window
+    if (::PtInRect(&rect, mtl) && ::PtInRect(&rect, mbr)) return false;
+
+    // ignore if the window cannot be fit in the monitor
+    if (mi.rcWork.right < pt.x + width ||
+        mi.rcWork.bottom < pt.y + height) return false;
+
+    log() << _T("ignore_too_large did not ignore") << std::endl;
+  }
+
   // ignore specific window class
   TCHAR class_name[_MAX_PATH];
   ::GetClassName(hwnd, class_name, _MAX_PATH);