diff --git a/Known-issues.md b/Known-issues.md
index 428042b..95bacc7 100644
--- a/Known-issues.md
+++ b/Known-issues.md
@@ -287,9 +287,11 @@ See [this page](https://github.com/spice2x/spice2x.github.io/wiki/Touch-screens)
 
 ### T44
 * This game is a proper DX9 game, and it'll try to launch at 1080x1920 in fullscreen by default. Rotate your monitor to fit this, or run in windowed mode.
+    * If the game tabs out when you mouse click or touch, or if the screen is frozen, it means the game failed to launch in full screen.
 * In `2020020180` data, markers are invisible. Enter the hamburger menu and exit to fix this (bottom left button in song select). Seems to be a bug in the game.
 * Touch debug overlay is not implemented.
 
+
 ## Pop'n Music
  * pop'n 19 Tune Street; when HD mode is enabled, it may crash on title screen with `CommReadMyAddr` / `CommPolling` on the stack. This is caused by dirty / incomplete data that is widely distributed.
  * pop'n may appear to hang immediately after launching (either stuck on black screen, or "not responding" popup from Windows). This may be caused by slow disk I/O when the game tries to access NVRAM. Try waiting a few minutes and see if the game eventually boots. To speed this up, move to an SSD, and add an exception to any anti-virus scanners.