diff --git a/headers/private/interface/BMCPrivate.h b/headers/private/interface/BMCPrivate.h
index c6f0bdead3..82097168d1 100644
--- a/headers/private/interface/BMCPrivate.h
+++ b/headers/private/interface/BMCPrivate.h
@@ -57,6 +57,7 @@ private:
 		bool		fFixedSize;	
 		BMessageRunner	*fRunner;
 		bool		fShowPopUpMarker;
+		float		fPreviousWidth;
 };
 //------------------------------------------------------------------------------
 
diff --git a/src/kits/interface/BMCPrivate.cpp b/src/kits/interface/BMCPrivate.cpp
index c3c1111eba..455e1b0cb0 100644
--- a/src/kits/interface/BMCPrivate.cpp
+++ b/src/kits/interface/BMCPrivate.cpp
@@ -55,15 +55,15 @@ _BMCFilter_::operator=(const _BMCFilter_ &)
 }
 
 
-_BMCMenuBar_::_BMCMenuBar_(BRect frame, bool fixed_size, BMenuField *menuField)
-	:	BMenuBar(frame, "_mc_mb_", B_FOLLOW_LEFT | B_FOLLOW_TOP, B_ITEMS_IN_ROW,
-			!fixed_size)
+_BMCMenuBar_::_BMCMenuBar_(BRect frame, bool fixedSize, BMenuField *menuField)
+	: BMenuBar(frame, "_mc_mb_", B_FOLLOW_LEFT | B_FOLLOW_TOP, B_ITEMS_IN_ROW,
+		!fixedSize)
 {
 	SetFlags(Flags() | B_FRAME_EVENTS);
 	SetBorder(B_BORDER_CONTENTS);
 
 	fMenuField = menuField;
-	fFixedSize = fixed_size;
+	fFixedSize = fixedSize;
 	fRunner = NULL;
 	fShowPopUpMarker = true;
 
@@ -76,6 +76,8 @@ _BMCMenuBar_::_BMCMenuBar_(BRect frame, bool fixed_size, BMenuField *menuField)
 	SetItemMargins(left, top, right, bottom);
 
 	SetMaxContentWidth(frame.Width() - (left + right));
+
+	fPreviousWidth = frame.Width();
 }
 
 
@@ -115,6 +117,8 @@ _BMCMenuBar_::AttachedToWindow()
 
 	BMenuBar *menuBar = Window()->KeyMenuBar();
 	BMenuBar::AttachedToWindow();
+	if (fFixedSize)
+		SetResizingMode(B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP);
 	Window()->SetKeyMenuBar(menuBar);
 }
 
@@ -227,27 +231,32 @@ _BMCMenuBar_::FrameResized(float width, float height)
 {
 	// we need to take care of resizing and cleaning up
 	// the parent menu field
-	float diff = Frame().right - fMenuField->Bounds().right;
+	float diff;
+	if (fFixedSize)
+		diff = width - fPreviousWidth;
+	else
+		diff = Frame().right - fMenuField->Bounds().right;
+
+	fPreviousWidth = width;
+
 	if (Window()) {
 		if (diff > 0) {
 			// clean up the dirty right border of
 			// the menu field when enlarging
 			BRect dirty(fMenuField->Bounds());
-			dirty.left = dirty.right - 2;
+			dirty.left = dirty.right - diff - 2;
 			fMenuField->Invalidate(dirty);
 			
 			// clean up the arrow part
 			dirty = Bounds();
-			dirty.right -= diff;
-			dirty.left = dirty.right - 12;
+			dirty.left = dirty.right - diff - 12;
 			Invalidate(dirty);
 
 		} else if (diff < 0) {
 			// clean up the dirty right line of
 			// the menu field when shrinking
 			BRect dirty(fMenuField->Bounds());
-			dirty.left = dirty.right + diff + 1;
-			dirty.right = dirty.left + 1;
+			dirty.left = dirty.right - 2;
 			fMenuField->Invalidate(dirty);
 			
 			// clean up the arrow part
@@ -257,10 +266,13 @@ _BMCMenuBar_::FrameResized(float width, float height)
 		}
 	}
 
-	// we have been shrinked or enlarged and need to take
-	// of the size of the parent menu field as well
-	// NOTE: no worries about follow mode, we follow left and top
-	fMenuField->ResizeBy(diff + 2, 0.0);
+	if (!fFixedSize) {
+		// we have been shrinked or enlarged and need to take
+		// of the size of the parent menu field as well
+		// NOTE: no worries about follow mode, we follow left and top
+		// in autosize mode
+		fMenuField->ResizeBy(diff + 2, 0.0);
+	}
 	BMenuBar::FrameResized(width, height);
 }
 
diff --git a/src/kits/interface/MenuField.cpp b/src/kits/interface/MenuField.cpp
index 6762420e6c..382b2f38a1 100644
--- a/src/kits/interface/MenuField.cpp
+++ b/src/kits/interface/MenuField.cpp
@@ -526,7 +526,7 @@ BMenuField::SetDivider(float divider)
 		fMenuBar->MoveTo(fDivider + 1, kVMargin);
 
 		if (fFixedSizeMB) {
-			fMenuBar->ResizeTo(Bounds().Width() - fDivider + 1 - 2,
+			fMenuBar->ResizeTo(Bounds().Width() - fDivider - 2,
 							   dirty.Height());
 		}
 
@@ -760,7 +760,7 @@ BMenuField::InitObject2()
 	float height = floorf(fontHeight.ascent + fontHeight.descent
 		+ fontHeight.leading) + 7;
 
-	fMenuBar->ResizeTo(Bounds().Width() - fDivider, height);
+	fMenuBar->ResizeTo(Bounds().Width() - fDivider - 2, height);
 	fMenuBar->AddFilter(new _BMCFilter_(this, B_MOUSE_DOWN));
 }
 
@@ -883,7 +883,7 @@ BMenuField::_InitMenuBar(BMenu* menu, BRect frame, bool fixedSize)
 	InitMenu(menu);
 
 	fMenuBar = new _BMCMenuBar_(BRect(frame.left + fDivider + 1,
-		frame.top + kVMargin, frame.right, frame.bottom - kVMargin),
+		frame.top + kVMargin, frame.right - 2, frame.bottom - kVMargin),
 		fixedSize, this);
 
 	// by default align the menu bar left in the available space