Screensaver bugs

When clicking Preview for Cylinders fractals screensaver from Display Properties Screensaver tab -> the mouse cursor disappears permanently from the screen, and it does not reappear even when the screensaver closes, thus making ReactOS an OS without a mouse cursor. The cursor reappears only when the system is restarted.

Another problem is with the Matrix Screensaver Preview... It should hide the mouse cursor in Preview Mode (And show it after the screensaver was closed )