If your monitor is stuck in color cycle mode and you cannot access the menu settings, try power cycling the monitor by turning it off, unplugging it, waiting a few minutes, and then plugging it back in. Check the physical buttons on the monitor to ensure none are stuck. If available, use the monitor's reset function or consult the user manual for instructions. Try disconnecting and reconnecting the video cable. Additionally, you can use a Dead Pixel Test tool, available online, to check for any pixel-related issues, such as stuck or dead pixels, which may be affecting the color cycle mode on your monitor. If the issue persists, test the monitor on a different computer. Contact the manufacturer's support or seek professional assistance if the problem persists.