diff --git a/group_windows.go b/group_windows.go
index d4acdda..8666b99 100644
--- a/group_windows.go
+++ b/group_windows.go
@@ -68,9 +68,9 @@ func (g *group) xpreferredSize(d *sizing) (width, height int) {
 		marginRectDLU(&r, -groupYMarginTop, -groupYMarginBottom, -groupXMargin, -groupXMargin, d)
 	} else {
 		// unforutnately, as mentioned above, the size of a groupbox includes the label and border
-		// 1DLU on each side should be enough to make up for that; TODO is not, we can change it
+		// 1 character cell (4DLU x, 8DLU y) on each side (but only 3DLU on the bottom) should be enough to make up for that; TODO is not, we can change it
 		// TODO make these named constants
-		marginRectDLU(&r, -1, -1, -1, -1, d)
+		marginRectDLU(&r, -8, -3, -4, -4, d)
 	}
 	return int(r.right - r.left), int(r.bottom - r.top)
 }
@@ -92,7 +92,7 @@ func (g *group) xresize(x int, y int, width int, height int, d *sizing) {
 		// see above
 		marginRectDLU(&r, groupYMarginTop, groupYMarginBottom, groupXMargin, groupXMargin, d)
 	} else {
-		marginRectDLU(&r, 1, 1, 1, 1, d)
+		marginRectDLU(&r, 8, 3, 4, 4, d)
 	}
 	g.child.resize(int(r.left), int(r.top), int(r.right - r.left), int(r.bottom - r.top), d)
 }