diff --git a/gb.gtk/src/cpaint_impl.cpp b/gb.gtk/src/cpaint_impl.cpp
index dbe130c5f..a5164eb0f 100644
--- a/gb.gtk/src/cpaint_impl.cpp
+++ b/gb.gtk/src/cpaint_impl.cpp
@@ -260,6 +260,11 @@ static int Begin(GB_PAINT *d)
 			
 			EXTRA(d)->context = ((CDRAWINGAREA *)device)->context;
 			cairo_reference(CONTEXT(d));
+
+			GtkAllocation a;
+			gtk_widget_get_allocation(wid->border, &a);
+			dx = a.x;
+			dy = a.y;
 		}
 
 		d->resolutionX = gDesktop::resolution(); //device->physicalDpiX();
diff --git a/gb.gtk/src/gslider.cpp b/gb.gtk/src/gslider.cpp
index f82eef9b8..ce6ea9c25 100644
--- a/gb.gtk/src/gslider.cpp
+++ b/gb.gtk/src/gslider.cpp
@@ -195,8 +195,8 @@ int gSlider::value()
 void gSlider::setMax(int vl)
 {
 	_max = vl;
-	if (_min > _max)
-		_min = _max;
+	if (_min >= _max)
+		_min = _max - 1;
 	init();
 	updateMark();
 }
@@ -204,8 +204,8 @@ void gSlider::setMax(int vl)
 void gSlider::setMin(int vl)
 {
 	_min = vl;
-	if (_min > _max)
-		_max = _min;
+	if (_min >= _max)
+		_max = _min + 1;
 	init();
 	updateMark();
 }