diff --git a/core/frame_main.cpp b/core/frame_main.cpp
index e1279db4d..9427b7e13 100644
--- a/core/frame_main.cpp
+++ b/core/frame_main.cpp
@@ -948,7 +948,7 @@ void FrameMain::SynchronizeProject(bool fromSubs) {
 		wxString autobasefn(Options.AsText(_T("Automation Base Path")));
 
 		const std::vector<Automation4::Script*> &scripts = local_scripts->GetScripts();
-		for (int i = 0; i < scripts.size(); i++) {
+		for (unsigned int i = 0; i < scripts.size(); i++) {
 			Automation4::Script *script = scripts[i];
 
 			if (i != 0)
diff --git a/core/frame_main_events.cpp b/core/frame_main_events.cpp
index a124ccf16..b39db90d0 100644
--- a/core/frame_main_events.cpp
+++ b/core/frame_main_events.cpp
@@ -238,7 +238,7 @@ void FrameMain::OnMenuOpen (wxMenuEvent &event) {
 	wxMenu *curMenu = event.GetMenu();
 
 	// Start by cleaning up in macro menu items
-	for (int i = 0; i < activeMacroItems.size(); i++) {
+	for (unsigned int i = 0; i < activeMacroItems.size(); i++) {
 		wxMenu *p = 0;
 		wxMenuItem *it = MenuBar->FindItem(Menu_Automation_Macro + i, &p);
 		if (it)
diff --git a/lua51/lua51_vc8.vcproj b/lua51/lua51_vc8.vcproj
index c50b5720c..301929f0d 100644
--- a/lua51/lua51_vc8.vcproj
+++ b/lua51/lua51_vc8.vcproj
@@ -44,7 +44,7 @@
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
-				RuntimeLibrary="1"
+				RuntimeLibrary="3"
 				DisableLanguageExtensions="false"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
@@ -109,7 +109,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="true"