Index: trunk/src/board.c
===================================================================
--- trunk/src/board.c	(revision 6637)
+++ trunk/src/board.c	(revision 6638)
@@ -111,10 +111,11 @@
 
 #include "defpcb_internal.c"
 
-pcb_board_t *pcb_board_new(void)
+pcb_board_t *pcb_board_new(int inhibit_events)
 {
 	pcb_board_t *old, *nw = NULL;
 	int dpcb;
+	unsigned int inh = inhibit_events ? PCB_INHIBIT_BOARD_CHANGED : 0;
 
 	old = PCB;
 	PCB = NULL;
@@ -121,7 +122,7 @@
 
 	dpcb = -1;
 	pcb_io_err_inhibit_inc();
-	conf_list_foreach_path_first(dpcb, &conf_core.rc.default_pcb_file, pcb_load_pcb(__path__, NULL, pcb_false, 1 | 0x10));
+	conf_list_foreach_path_first(dpcb, &conf_core.rc.default_pcb_file, pcb_load_pcb(__path__, NULL, pcb_false, 1 | 0x10 | inh));
 	pcb_io_err_inhibit_dec();
 
 	if (dpcb != 0) { /* no default PCB in file, use embedded version */
Index: trunk/src/board.h
===================================================================
--- trunk/src/board.h	(revision 6637)
+++ trunk/src/board.h	(revision 6638)
@@ -120,8 +120,9 @@
 /* creates a new PCB - low level */
 pcb_board_t *pcb_board_new_(pcb_bool SetDefaultNames);
 
-/* creates a new PCB - high level (uses a template board) */
-pcb_board_t *pcb_board_new(void);
+/* creates a new PCB - high level (uses a template board); does not generate
+   new board event if inhibit_events is set */
+pcb_board_t *pcb_board_new(int inhibit_events);
 
 /* Called after PCB->Data->LayerN is set.  Returns non-zero on error */
 int pcb_board_new_postproc(pcb_board_t *pcb, int use_defaults);
Index: trunk/src/buffer.c
===================================================================
--- trunk/src/buffer.c	(revision 6637)
+++ trunk/src/buffer.c	(revision 6638)
@@ -202,7 +202,7 @@
  */
 pcb_bool pcb_buffer_load_layout(pcb_buffer_t *Buffer, const char *Filename, const char *fmt)
 {
-	pcb_board_t *newPCB = pcb_board_new();
+	pcb_board_t *newPCB = pcb_board_new(1);
 
 	/* new data isn't added to the undo list */
 	if (!pcb_parse_pcb(newPCB, Filename, fmt, CFR_invalid, 0)) {
Index: trunk/src/file_act.c
===================================================================
--- trunk/src/file_act.c	(revision 6637)
+++ trunk/src/file_act.c	(revision 6638)
@@ -190,7 +190,7 @@
 		if (PCB->Changed && conf_core.editor.save_in_tmp)
 			pcb_save_in_tmp();
 		pcb_board_remove(PCB);
-		PCB = pcb_board_new();
+		PCB = pcb_board_new(0);
 		pcb_board_new_postproc(PCB, 1);
 
 		/* setup the new name and reset some values to default */
Index: trunk/src/main.c
===================================================================
--- trunk/src/main.c	(revision 6637)
+++ trunk/src/main.c	(revision 6638)
@@ -466,7 +466,7 @@
 	pcb_gui->parse_arguments(&hid_argc, &hid_argv);
 
 	/* Create a new PCB object in memory */
-	PCB = pcb_board_new();
+	PCB = pcb_board_new(0);
 
 	if (PCB == NULL) {
 		pcb_message(PCB_MSG_ERROR, "Can't create an empty layout, exiting\n");
Index: trunk/src/plug_io.c
===================================================================
--- trunk/src/plug_io.c	(revision 6637)
+++ trunk/src/plug_io.c	(revision 6638)
@@ -443,7 +443,8 @@
 		}
 	}
 
-	pcb_board_changed(0);
+	if (!(how & PCB_INHIBIT_BOARD_CHANGED))
+		pcb_board_changed(0);
 
 	/* release unused memory */
 	pcb_board_remove(newPCB);
Index: trunk/src/plug_io.h
===================================================================
--- trunk/src/plug_io.h	(revision 6637)
+++ trunk/src/plug_io.h	(revision 6638)
@@ -112,7 +112,8 @@
 FILE *pcb_check_and_open_file(const char *, pcb_bool, pcb_bool, pcb_bool *, pcb_bool *);
 FILE *pcb_open_connection_file(void);
 int pcb_save_pcb(const char *, const char *fmt);
-int pcb_load_pcb(const char *name, const char *fmt, pcb_bool, int how); /* how: 0=normal pcb; 1=default.pcb, 2=misc (do not load settings) | 0x10: ignore missing file */
+#define PCB_INHIBIT_BOARD_CHANGED 0x20
+int pcb_load_pcb(const char *name, const char *fmt, pcb_bool, int how); /* how: 0=normal pcb; 1=default.pcb, 2=misc (do not load settings) | 0x10: ignore missing file, | PCB_INHIBIT_BOARD_CHANGED: do not send a board changed event */
 void pcb_enable_autosave(void);
 void pcb_backup(void);
 void pcb_save_in_tmp(void);