diff --git a/src/mathed/math_boxinset.C b/src/mathed/math_boxinset.C
index 3d5f14b6ad..19ccbad82b 100644
--- a/src/mathed/math_boxinset.C
+++ b/src/mathed/math_boxinset.C
@@ -54,3 +54,9 @@ void MathBoxInset::draw(MathPainterInfo & pi, int x, int y) const
 	MathGridInset::draw(pi, x, y);
 	mathed_draw_framebox(pi, x, y, this);
 }
+
+
+void MathBoxInset::infoize(std::ostream & os) const
+{
+	os << "Box: " << name_;
+}
diff --git a/src/mathed/math_boxinset.h b/src/mathed/math_boxinset.h
index 59fd02d1ac..07f3440d96 100644
--- a/src/mathed/math_boxinset.h
+++ b/src/mathed/math_boxinset.h
@@ -33,6 +33,8 @@ public:
 	void write(WriteStream & os) const;
 	///
 	void normalize(NormalStream & ns) const;
+	///
+	void infoize(std::ostream & os) const;
 
 private:
 	///
diff --git a/src/mathed/math_braceinset.h b/src/mathed/math_braceinset.h
index ebfecb6c72..f7b2b98b7c 100644
--- a/src/mathed/math_braceinset.h
+++ b/src/mathed/math_braceinset.h
@@ -18,8 +18,8 @@ public:
 	MathBraceInset();
 	///
 	MathInset * clone() const;
-	///
-	MathBraceInset * asBraceInset() { return this; }
+	/// we write extra braces in any case...
+	bool extraBraces() const { return true; }
 	///
 	void draw(MathPainterInfo &, int x, int y) const;
 	///
diff --git a/src/mathed/math_cursor.C b/src/mathed/math_cursor.C
index 4fc64187ec..18113f0920 100644
--- a/src/mathed/math_cursor.C
+++ b/src/mathed/math_cursor.C
@@ -727,7 +727,7 @@ void MathCursor::getPos(int & x, int & y)
 	if (array().empty())
 		x += 2;
 	y = xarray().yo();
-	lyxerr << "getPos: " << x << " " << y << "\n";
+	//lyxerr << "getPos: " << x << " " << y << "\n";
 }
 
 
diff --git a/src/mathed/math_inset.h b/src/mathed/math_inset.h
index 515e81f991..965ac0cb65 100644
--- a/src/mathed/math_inset.h
+++ b/src/mathed/math_inset.h
@@ -49,7 +49,6 @@ inclusion in the "real LyX insets" FormulaInset and FormulaMacroInset.
 
 class MathArrayInset;
 class MathAMSArrayInset;
-class MathBraceInset;
 class MathBoxInset;
 class MathCharInset;
 class MathDelimInset;
@@ -195,7 +194,6 @@ public:
 	/// identifies certain types of insets
 	virtual MathAMSArrayInset      * asAMSArrayInset()      { return 0; }
 	virtual MathArrayInset         * asArrayInset()         { return 0; }
-	virtual MathBraceInset         * asBraceInset()         { return 0; }
 	virtual MathBoxInset           * asBoxInset()           { return 0; }
 	virtual MathBoxInset const     * asBoxInset() const     { return 0; }
 	virtual MathCharInset const    * asCharInset() const    { return 0; }
@@ -228,6 +226,8 @@ public:
 	virtual bool isActive() const { return nargs() > 0; }
 	/// is the a relational operator (used for splitting equations)
 	virtual bool isRelOp() const { return false; }
+	/// will this get written as a single block in {..}
+	virtual bool extraBraces() const { return false; }
 
 	/// return the content as char if the inset is able to do so
 	virtual char getChar() const { return 0; }
diff --git a/src/mathed/math_parboxinset.C b/src/mathed/math_parboxinset.C
index 93ebf41666..ea7ddd55dd 100644
--- a/src/mathed/math_parboxinset.C
+++ b/src/mathed/math_parboxinset.C
@@ -136,6 +136,6 @@ void MathParboxInset::write(WriteStream & os) const
 
 void MathParboxInset::infoize(std::ostream & os) const
 {
-	os << "Box: Parbox " << tex_width_ << ' ';
+	os << "Box: Parbox " << tex_width_;
 }
 
diff --git a/src/mathed/math_parser.C b/src/mathed/math_parser.C
index f015f8c8ba..705c253711 100644
--- a/src/mathed/math_parser.C
+++ b/src/mathed/math_parser.C
@@ -711,12 +711,14 @@ void Parser::parse_into1(MathGridInset & grid, unsigned flags,
 		else if (t.cat() == catBegin) {
 			MathArray ar;
 			parse_into(ar, FLAG_BRACE_LAST, mathmode);
-			// reduce multiple nesting levels to a single one
+			// do not create a BraceInset if they were written by LyX
 			// this helps to keep the annoyance of  "a choose b"  to a minimum
-			if (ar.size() && ar.front()->asBraceInset())
-				ar = ar.front()->asBraceInset()->cell(0);
-			cell->push_back(MathAtom(new MathBraceInset));
-			cell->back()->cell(0).swap(ar);
+			if (ar.size() == 1 && ar[0]->extraBraces()) {
+				cell->push_back(ar);
+			} else {
+				cell->push_back(MathAtom(new MathBraceInset));
+				cell->back()->cell(0).swap(ar);
+			}
 		}
 
 		else if (t.cat() == catEnd) {
diff --git a/src/mathed/math_scriptinset.C b/src/mathed/math_scriptinset.C
index 75bc596e9b..40c860d75e 100644
--- a/src/mathed/math_scriptinset.C
+++ b/src/mathed/math_scriptinset.C
@@ -463,5 +463,5 @@ void MathScriptInset::octavize2(MathInset const * nuc, OctaveStream & os) const
 void MathScriptInset::infoize(std::ostream & os) const
 {
 	if (limits_)
-		os << (limits_ == 1 ? "Displayed limits " : "Inlined limits ");
+		os << (limits_ == 1 ? "Displayed limits" : "Inlined limits");
 }
diff --git a/src/mathed/math_sizeinset.C b/src/mathed/math_sizeinset.C
index 7fb67920b5..845e16ff9f 100644
--- a/src/mathed/math_sizeinset.C
+++ b/src/mathed/math_sizeinset.C
@@ -37,7 +37,7 @@ void MathSizeInset::draw(MathPainterInfo & pi, int x, int y) const
 {
 	//MathStyleChanger dummy(pi.base, MathStyles(key_->id));
 	xcell(0).draw(pi, x + 1, y);
-	mathed_draw_framebox(pi, x, y, this);
+	drawMarkers2(pi, x, y);
 }
 
 
diff --git a/src/mathed/math_sizeinset.h b/src/mathed/math_sizeinset.h
index cae5e679a4..c2b1c22350 100644
--- a/src/mathed/math_sizeinset.h
+++ b/src/mathed/math_sizeinset.h
@@ -20,6 +20,8 @@ public:
 	explicit MathSizeInset(latexkeys const * l);
 	///
 	MathInset * clone() const;
+	/// we write extra braces in any case...
+	bool extraBraces() const { return true; }
 	///
 	void metrics(MathMetricsInfo & st) const;
 	///