Index: trunk/src_plugins/gui/layersel.c
===================================================================
--- trunk/src_plugins/gui/layersel.c	(revision 776)
+++ trunk/src_plugins/gui/layersel.c	(revision 777)
@@ -534,7 +534,7 @@
 
 	if (step > 0) {
 			if (snv-src > 1)
-				dst+=(snv-src);
+				dst+=(snv-src-1);
 			if (dst >= camv->layers.used)
 				dst = camv->layers.used-1;