--- dialog-1.1-20070514/ui_getc.c	2007-05-15 00:24:00.000000000 +0200
+++ dialog-1.1-20070514_fixed/ui_getc.c	2007-05-29 20:20:27.000000000 +0200
@@ -252,6 +252,8 @@
 	ch = wgetch(win);
 	/* if error from resizing, wait and try again */
 	if (ch == ERR) {
+	    current = time((time_t *) 0);
+	    if (interval > 0 && current >= expired) dlg_exiterr("timeout");
 	    napms(50);
 	    continue;
 	}