diff --git a/app/define.cpp b/app/define.cpp
index 882368b3..24288885 100644
--- a/app/define.cpp
+++ b/app/define.cpp
@@ -9,6 +9,10 @@ const char *WINDOW_TITLE = "LEGO
 unsigned char g_mousedown = 0;
 unsigned char g_mousemoved = 0;
 int _DAT_00410050 = 0;
+int _DAT_00410054 = 1;
+int g_targetWidth = 640;
+int g_targetHeight = 480;
+unsigned int g_targetDepth = 16;
 int _DAT_00410064 = 0;
 int _DAT_004101bc = 200;
 long g_lastFrameTime = 0;
diff --git a/app/define.h b/app/define.h
index 4b002051..e09a934a 100644
--- a/app/define.h
+++ b/app/define.h
@@ -10,6 +10,10 @@ extern const char *WINDOW_TITLE;
 extern unsigned char g_mousedown;
 extern unsigned char g_mousemoved;
 extern int _DAT_00410050;
+extern int _DAT_00410054;
+extern int g_targetWidth;
+extern int g_targetHeight;
+extern unsigned int g_targetDepth;
 extern int _DAT_00410064;
 extern int _DAT_004101bc;
 extern long g_lastFrameTime;
diff --git a/app/isle.cpp b/app/isle.cpp
index 26cc68dc..c8089444 100644
--- a/app/isle.cpp
+++ b/app/isle.cpp
@@ -355,31 +355,27 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
     }
     return DefWindowProcA(hWnd, WM_NCPAINT, wParam, lParam);
   case WM_DISPLAYCHANGE:
-    /* FIXME: Untangle
-    if (g_isle && VideoManager() && g_isle->m_fullScreen && ((pLVar7 = VideoManager(), *(int *)(pLVar7 + 0x74) != 0 && (pLVar7 = VideoManager(), *(int *)(*(int *)(pLVar7 + 0x74) + 0x880) != 0))) {
+    if (g_isle && VideoManager() && g_isle->m_fullScreen && VideoManager()->m_unk74 && VideoManager()->m_unk74[0x220]) {
       if (_DAT_00410054 == 0) {
-        unsigned char bVar1 = FALSE;
-        if (LOWORD(lParam) == _DAT_00410058 && HIWORD(lParam) == _DAT_0041005c && _DAT_00410060 == wParam) {
-          bVar1 = TRUE;
+        unsigned char valid = FALSE;
+        if (LOWORD(lParam) == g_targetWidth && HIWORD(lParam) == g_targetHeight && g_targetDepth == wParam) {
+          valid = TRUE;
         }
         if (_DAT_00410050 == 0) {
-          if (!bVar1) {
+          if (!valid) {
             _DAT_00410050 = 1;
             Lego()->vtable38();
             VideoManager()->DisableRMDevice();
           }
-        }
-        else if (bVar1) {
+        } else if (valid) {
           _DAT_00410064 = 1;
         }
-      }
-      else {
+      } else {
         _DAT_00410054 = 0;
-        _DAT_00410060 = wParam;
+        g_targetDepth = wParam;
       }
-    }*/
-    return DefWindowProcA(hWnd,WM_DISPLAYCHANGE,wParam,lParam);
-
+    }
+    return DefWindowProcA(hWnd, WM_DISPLAYCHANGE, wParam, lParam);
   case WM_SETCURSOR:
   case WM_KEYDOWN:
   case WM_MOUSEMOVE:
diff --git a/lib/legovideomanager.h b/lib/legovideomanager.h
index 0dc4ba53..fd370715 100644
--- a/lib/legovideomanager.h
+++ b/lib/legovideomanager.h
@@ -6,10 +6,43 @@ class LegoVideoManager
 public:
   __declspec(dllexport) int EnableRMDevice();
 
+  __declspec(dllexport) int DisableRMDevice();
+
   __declspec(dllexport) void EnableFullScreenMovie(unsigned char a, unsigned char b);
 
   __declspec(dllexport) void MoveCursor(int x, int y);
 
+  int m_unk00;
+  int m_unk04;
+  int m_unk08;
+  int m_unk0c;
+  int m_unk10;
+  int m_unk14;
+  int m_unk18;
+  int m_unk1c;
+  int m_unk20;
+  int m_unk24;
+  int m_unk28;
+  int m_unk2c;
+  int m_unk30;
+  int m_unk34;
+  int m_unk38;
+  int m_unk3c;
+  int m_unk40;
+  int m_unk44;
+  int m_unk48;
+  int m_unk4c;
+  int m_unk50;
+  int m_unk54;
+  int m_unk58;
+  int m_unk5c;
+  int m_unk60;
+  int m_unk64;
+  int m_unk68;
+  int m_unk6c;
+  int m_unk70;
+  int *m_unk74;
+
 };
 
 #endif // LEGOVIDEOMANAGER_H