diff --git a/cocos2dx/misc_nodes/CCProgressTimer.cpp b/cocos2dx/misc_nodes/CCProgressTimer.cpp
index acd7fb114b..498d6874de 100644
--- a/cocos2dx/misc_nodes/CCProgressTimer.cpp
+++ b/cocos2dx/misc_nodes/CCProgressTimer.cpp
@@ -96,7 +96,7 @@ void CCProgressTimer::setPercentage(float fPercentage)
 {
 	if (m_fPercentage != fPercentage)
 	{
-		m_fPercentage = clampf(m_fPercentage, 0, 100);
+		m_fPercentage = clampf(fPercentage, 0, 100);
 		updateProgress();
 	}
 }
@@ -164,7 +164,7 @@ ccVertex2F CCProgressTimer::vertexFromTexCoord(cocos2d::CCPoint texCoord)
 
 void CCProgressTimer::updateColor(void)
 {
-	GLbyte op = m_pSprite->getOpacity();
+	GLubyte op = m_pSprite->getOpacity();
 	ccColor3B c3b = m_pSprite->getColor();
 
 	ccColor4B color = {c3b.r, c3b.g, c3b.b, op};
diff --git a/cocos2dx/textures/CCTextureAtlas.cpp b/cocos2dx/textures/CCTextureAtlas.cpp
index d5534357b5..5b096b9c6d 100644
--- a/cocos2dx/textures/CCTextureAtlas.cpp
+++ b/cocos2dx/textures/CCTextureAtlas.cpp
@@ -44,6 +44,9 @@ CCTextureAtlas::CCTextureAtlas()
     :m_pIndices(NULL)
 	,m_pTexture(NULL)	
 	,m_pQuads(NULL)
+#if CC_USES_VBO
+	, m_bDirty(false)
+#endif
 {}
 
 CCTextureAtlas::~CCTextureAtlas()