Index: trunk/src/find_lookup.c
===================================================================
--- trunk/src/find_lookup.c	(revision 6798)
+++ trunk/src/find_lookup.c	(revision 6799)
@@ -520,8 +520,8 @@
 			/* try all new pads */
 			/* handle the special pad layers */
 			flg = pcb_layergrp_flags(group);
-			if (flg & PCB_LYT_BOTTOM)    layer = PCB_SOLDER_SIDE;
-			else if (flg & PCB_LYT_TOP)  layer = PCB_COMPONENT_SIDE;
+			if ((flg & PCB_LYT_BOTTOM) && (flg & PCB_LYT_COPPER))    layer = PCB_SOLDER_SIDE;
+			else if ((flg & PCB_LYT_TOP) && (flg & PCB_LYT_COPPER))  layer = PCB_COMPONENT_SIDE;
 			else continue; /* skip pads for this group */
 
 			position = &padposition[layer];
@@ -927,8 +927,8 @@
 
 	/* handle the special pad layers */
 	flg = pcb_layergrp_flags(LayerGroup);
-	if (flg & PCB_LYT_BOTTOM)    info.layer = PCB_SOLDER_SIDE;
-	else if (flg & PCB_LYT_TOP)  info.layer = PCB_COMPONENT_SIDE;
+	if ((flg & PCB_LYT_BOTTOM) && (flg & PCB_LYT_COPPER))    info.layer = PCB_SOLDER_SIDE;
+	else if ((flg & PCB_LYT_TOP) && (flg & PCB_LYT_COPPER))  info.layer = PCB_COMPONENT_SIDE;
 	else return pcb_false;
 
 	if (setjmp(info.env) == 0)
@@ -1050,8 +1050,8 @@
 
 	/* handle the special pad layers */
 	flg = pcb_layergrp_flags(LayerGroup);
-	if (flg & PCB_LYT_BOTTOM)    info.layer = PCB_SOLDER_SIDE;
-	else if (flg & PCB_LYT_TOP)  info.layer = PCB_COMPONENT_SIDE;
+	if ((flg & PCB_LYT_BOTTOM) && (flg & PCB_LYT_COPPER))    info.layer = PCB_SOLDER_SIDE;
+	else if ((flg & PCB_LYT_TOP) && (flg & PCB_LYT_COPPER))  info.layer = PCB_COMPONENT_SIDE;
 	else return pcb_false;
 
 	if (setjmp(info.env) == 0)
@@ -1144,8 +1144,8 @@
 
 	/* handle the special pad layers */
 	flg = pcb_layergrp_flags(LayerGroup);
-	if (flg & PCB_LYT_BOTTOM)    info.layer = PCB_SOLDER_SIDE;
-	else if (flg & PCB_LYT_TOP)  info.layer = PCB_COMPONENT_SIDE;
+	if ((flg & PCB_LYT_BOTTOM) && (flg & PCB_LYT_COPPER))    info.layer = PCB_SOLDER_SIDE;
+	else if ((flg & PCB_LYT_TOP) && (flg & PCB_LYT_COPPER))  info.layer = PCB_COMPONENT_SIDE;
 	else return pcb_false;
 
 	if (setjmp(info.env) == 0)
@@ -1323,8 +1323,8 @@
 
 	/* handle the special pad layers */
 	flg = pcb_layergrp_flags(LayerGroup);
-	if (flg & PCB_LYT_BOTTOM)    info.layer = PCB_SOLDER_SIDE;
-	else if (flg & PCB_LYT_TOP)  info.layer = PCB_COMPONENT_SIDE;
+	if ((flg & PCB_LYT_BOTTOM) && (flg & PCB_LYT_COPPER))    info.layer = PCB_SOLDER_SIDE;
+	else if ((flg & PCB_LYT_TOP) && (flg & PCB_LYT_COPPER))  info.layer = PCB_COMPONENT_SIDE;
 	else return retv;
 
 	if (setjmp(info.env) == 0)
@@ -1444,8 +1444,8 @@
 
 	/* handle the special pad layers */
 	flg = pcb_layergrp_flags(LayerGroup);
-	if (flg & PCB_LYT_BOTTOM)    info.layer = PCB_SOLDER_SIDE;
-	else if (flg & PCB_LYT_TOP)  info.layer = PCB_COMPONENT_SIDE;
+	if ((flg & PCB_LYT_BOTTOM) && (flg & PCB_LYT_COPPER))    info.layer = PCB_SOLDER_SIDE;
+	else if ((flg & PCB_LYT_TOP) && (flg & PCB_LYT_COPPER))  info.layer = PCB_COMPONENT_SIDE;
 	else return pcb_false;
 
 	if (setjmp(info.env) == 0)