Streamed vbo checkbox wasn't enabling/disabling on RenderUseVBO change.

indra/newview/llfloaterhardwaresettings.cpp

@@ -96,6 +96,7 @@ void LLFloaterHardwareSettings::refreshEnabledState()
 	childSetMinValue("GrapicsCardTextureMemory", min_tex_mem);
 	childSetMaxValue("GrapicsCardTextureMemory", max_tex_mem);
 
+	mLastVBOState = LLVertexBuffer::sEnableVBOs;
 	if (!LLFeatureManager::getInstance()->isFeatureAvailable("RenderVBOEnable") ||
 		!gGLManager.mHasVertexBufferObject)
 	{
@@ -158,6 +159,13 @@ void LLFloaterHardwareSettings::onClose(bool app_quitting)
 	}
 }
 
+// virtual
+void LLFloaterHardwareSettings::draw()
+{
+	if(mLastVBOState == !LLVertexBuffer::sEnableVBOs)
+		refreshEnabledState();
+	LLFloater::draw();
+}
 
 //============================================================================
 

indra/newview/llfloaterhardwaresettings.h

@@ -75,6 +75,9 @@ public:
 	/// sync up menu with parameters
 	void refresh();
 
+	/// Draw the panel...
+	void draw();
+
 	/// Apply the changed values.
 	void apply();
 	
@@ -87,6 +90,7 @@ public:
 protected:
 	LLSliderCtrl*	mCtrlVideoCardMem;
 
+	//Retained values for cancel/reset
 	BOOL mUseVBO;
 	BOOL mUseFBO;
 	BOOL mUseAniso;
@@ -96,6 +100,7 @@ protected:
 	F32 mFogRatio;
 	BOOL mProbeHardwareOnStartup;
 
+	bool mLastVBOState; //track changes to LLVertexBuffer::sEnableVBOs every frame. Bleh.
 private:
 	// one instance on the inside
 	static LLFloaterHardwareSettings* sHardwareSettings;