Index: trunk/src/sch-rnd/file_act.c
===================================================================
--- trunk/src/sch-rnd/file_act.c	(revision 10324)
+++ trunk/src/sch-rnd/file_act.c	(revision 10325)
@@ -54,7 +54,17 @@
 #include "multi.h"
 #include "project.h"
 
+/* Return 1 if any of the currently loaded sheets have changes on them */
+static int any_sheet_changed(void)
+{
+	csch_sheet_t *sheet;
+	for(sheet = gdl_first(&rnd_designs); sheet != NULL; sheet = sheet->hidlib.link.next)
+		if (sheet->changed)
+			return 1;
 
+	return 0;
+}
+
 static const char csch_acts_Quit[] = "Quit()";
 static const char csch_acth_Quit[] = "Quits sch-rnd after confirming.";
 static fgw_error_t csch_act_Quit(fgw_arg_t *res, int argc, fgw_arg_t *argv)
@@ -67,7 +77,7 @@
 		exit(0);
 
 TODO("need to check all sheets, not just the current one")
-	if (!sheet->changed || (rnd_hid_message_box(RND_ACT_DESIGN, "warning", "Close: lose data", "Exiting sch-rnd will lose unsaved sheet modifications.", "cancel", 0, "ok", 1, NULL) == 1))
+	if (!any_sheet_changed() || (rnd_hid_message_box(RND_ACT_DESIGN, "warning", "Close: lose data", "Exiting sch-rnd will lose unsaved sheet modifications.", "cancel", 0, "ok", 1, NULL) == 1))
 		sch_rnd_quit_app();
 
 	RND_ACT_IRES(-1);