diff --git a/Known-issues.md b/Known-issues.md
index 4a76a98..77239df 100644
--- a/Known-issues.md
+++ b/Known-issues.md
@@ -327,6 +327,7 @@ If running TDJ in windowed mode with subscreen in a separate window (`-w` on, `-
  * If the game fails be detected or crashes on boot, it's almost certainly because you need to fix your XML files in prop folder. (e.g., `execexe: failed to load library libaio.dll` is actually caused by bad prop files).
  * The game requires your CPU to support AVX2 instructions.
  * The game is picky about audio; it runs in exclusive WASAPI. If you see messages like `[WASAPI EXCLUSIVE] Failed to initialize` you will need to find a patched DLL so you can use shared mode WASAPI. Patching cannot be performed via Patches tab for Unity games; you'll need to download it elsewhere.
+ * Having multiple monitors seem to break windowed mode. Temporarily force single monitor before launching the game (no need to disconnect).
 
 ## QuizKnock STADIUM