diff --git a/eve_rock_watcher.py b/eve_rock_watcher.py
index 959ced2..26d81d8 100644
--- a/eve_rock_watcher.py
+++ b/eve_rock_watcher.py
@@ -313,7 +313,8 @@ def main():
         try:
             rows = read_rows(cp, region, mode)
             if not rows:
-                region = None                          # lost it; re-detect next loop
+                # nothing selected at the moment — KEEP the fixed region (positions are
+                # stable; don't burn CPU re-hunting on a 9000px screen), just retry.
                 time.sleep(poll)
                 continue
             now = time.time()