--- lbbs/src/screen.c	2025/05/30 12:51:00	1.82
+++ lbbs/src/screen.c	2025/05/31 01:58:22	1.84
@@ -322,12 +322,20 @@ int display_data(const void *p_data, lon
 				case KEY_TIMEOUT:
 					goto cleanup;
 				case KEY_HOME:
+					if (line_current - line < 0) // Reach top
+					{
+						break;
+					}
 					line_current = 0;
 					line = begin_line;
 					max_lines = SCREEN_ROWS - 1;
 					clrline(begin_line, SCREEN_ROWS);
 					break;
 				case KEY_END:
+					if (line_total < SCREEN_ROWS - 2)
+					{
+						break;
+					}
 					line_current = line_total - (SCREEN_ROWS - 2);
 					line = begin_line;
 					max_lines = SCREEN_ROWS - 1;