// mode, or inset. I think edge to edge conforms better to the other ports,
// and inset mode is better accomplished with space around the wxNotebook rather
// than within it. --Robin
-#define wxMAC_EDGE_TO_EDGE 1
+
+// CS : had to switch off tight spacing due to 10.3 problems
+#define wxMAC_EDGE_TO_EDGE 0
static inline int wxMacTabMargin(long nbStyle, long side)
{