diff --git a/changes.txt b/changes.txt
index eb85059d..9c9c6349 100644
--- a/changes.txt
+++ b/changes.txt
@@ -8,6 +8,8 @@ Changes in ogl-es (not yet released - will be merged with trunk at some point)
 --------------------------
 Changes in 1.9 (not yet released)
 
+- Fix: addFileArchive now grab()'s the archive when you pass one in by pointer.
+- Fix: Prevent division by 0 in CGUIScrollBar::setPos
 - Fix: Add missing serialization to CSceneNodeAnimatorCameraFPS and CSceneNodeAnimatorCameraMaya
 - Fix: File-open dialog now restores the original locale after modifying it internally
 - Fix first calculation of the camerascenenode boundingsphere.
diff --git a/source/Irrlicht/CFileSystem.cpp b/source/Irrlicht/CFileSystem.cpp
index da89bc30..9bbc1ec9 100644
--- a/source/Irrlicht/CFileSystem.cpp
+++ b/source/Irrlicht/CFileSystem.cpp
@@ -428,15 +428,22 @@ bool CFileSystem::addFileArchive(IReadFile* file, bool ignoreCase,
 //! Adds an archive to the file system.
 bool CFileSystem::addFileArchive(IFileArchive* archive)
 {
-	for (u32 i = 0; i < FileArchives.size(); ++i)
+	if ( archive )
 	{
-		if (archive == FileArchives[i])
+		for (u32 i=0; i < FileArchives.size(); ++i)
 		{
-			return false;
+			if (archive == FileArchives[i])
+			{
+				return false;
+			}
 		}
+		FileArchives.push_back(archive);
+		archive->grab();
+
+		return true;
 	}
-	FileArchives.push_back(archive);
-	return true;
+
+	return false;
 }
 
 
diff --git a/source/Irrlicht/CGUIScrollBar.cpp b/source/Irrlicht/CGUIScrollBar.cpp
index f99c84fa..e0a8a030 100644
--- a/source/Irrlicht/CGUIScrollBar.cpp
+++ b/source/Irrlicht/CGUIScrollBar.cpp
@@ -348,20 +348,22 @@ void CGUIScrollBar::setPos(s32 pos)
 {
 	Pos = core::s32_clamp ( pos, Min, Max );
 
-	if (Horizontal)
+	if ( core::isnotzero ( range() ) )
 	{
-		f32 f = (RelativeRect.getWidth() - ((f32)RelativeRect.getHeight()*3.0f)) / range();
-		DrawPos = (s32)( ( ( Pos - Min ) * f) + ((f32)RelativeRect.getHeight() * 0.5f));
-		DrawHeight = RelativeRect.getHeight();
-	}
-	else
-	{
-		f32 f = (RelativeRect.getHeight() - ((f32)RelativeRect.getWidth()*3.0f)) / range();
+		if (Horizontal)
+		{
+			f32 f = (RelativeRect.getWidth() - ((f32)RelativeRect.getHeight()*3.0f)) / range();
+			DrawPos = (s32)( ( ( Pos - Min ) * f) + ((f32)RelativeRect.getHeight() * 0.5f));
+			DrawHeight = RelativeRect.getHeight();
+		}
+		else
+		{
+			f32 f = (RelativeRect.getHeight() - ((f32)RelativeRect.getWidth()*3.0f)) / range();
 
-		DrawPos = (s32)( ( ( Pos - Min ) * f) + ((f32)RelativeRect.getWidth() * 0.5f));
-		DrawHeight = RelativeRect.getWidth();
+			DrawPos = (s32)( ( ( Pos - Min ) * f) + ((f32)RelativeRect.getWidth() * 0.5f));
+			DrawHeight = RelativeRect.getWidth();
+		}
 	}
-
 }