Hi! I understand you're seeing a black screen when using the Kalshi app on your Windows 10 device and can't trade. Let's work through fixing this together.

First, can you tell me if this black screen appears right after launching the app, or does it happen when you try to perform a trade? Also, are you using the Kalshi app through a web browser or a dedicated app on your device?

Meanwhile, here are some initial troubleshooting steps that often resolve black screen issues with apps:

1. Restart the App and Device: Close the Kalshi app completely, then restart your computer. Sometimes a fresh start clears glitches.

2. Check for Updates: Ensure your Kalshi app and your browser (if using web) are updated to the latest version.

3. Clear Cache and Cookies (if using browser): Sometimes corrupted cached data causes display issues.

4. Disable VPN or Proxy: If you use a VPN or proxy, try disabling it briefly to see if that resolves the issue.

5. Update Graphics Drivers: Outdated graphics drivers can cause display problems. You can update them via the Device Manager on Windows.

If these don't help, the issue might be more specific. Let me know what you've tried so far and some details about how you access Kalshi. That way, I can guide you with more tailored steps.

Also, there’s a helpful video on fixing the Kalshi app not working that might be worth checking once we try these initial steps 1.

How does that sound? Would you like to start with these or share more details?