diff --git a/saco/d3d9/common/DXUTgui.cpp b/saco/d3d9/common/DXUTgui.cpp
index 44c566c..83c7704 100644
--- a/saco/d3d9/common/DXUTgui.cpp
+++ b/saco/d3d9/common/DXUTgui.cpp
@@ -19,6 +19,27 @@ CDXUTDialogResourceManager::CDXUTDialogResourceManager()
 }
 
 
+//--------------------------------------------------------------------------------------
+HRESULT CDXUTDialogResourceManager::OnResetDevice()
+{
+    HRESULT hr = S_OK;
+
+    for( int i=0; i < m_FontCache.GetSize(); i++ )
+    {
+        DXUTFontNode* pFontNode = m_FontCache.GetAt( i );
+
+        if( pFontNode->pFont )
+            pFontNode->pFont->OnResetDevice();
+    }
+
+    if( m_pSprite )
+        m_pSprite->OnResetDevice();
+
+    m_pd3dDevice->CreateStateBlock( D3DSBT_ALL, &m_pStateBlock );
+
+    return S_OK;
+}
+
 //--------------------------------------------------------------------------------------
 void DXUTBlendColor::Init( D3DCOLOR defaultColor, D3DCOLOR disabledColor, D3DCOLOR hiddenColor )
 {
diff --git a/saco/d3d9/common/DXUTgui.h b/saco/d3d9/common/DXUTgui.h
index 83608ff..fc1713d 100644
--- a/saco/d3d9/common/DXUTgui.h
+++ b/saco/d3d9/common/DXUTgui.h
@@ -63,6 +63,8 @@ class CDXUTDialogResourceManager
 public:
     CDXUTDialogResourceManager();
 
+    HRESULT     OnResetDevice();
+
     // Shared between all dialogs
     IDirect3DStateBlock9* m_pStateBlock;
     ID3DXSprite*          m_pSprite;          // Sprite used for drawing