Hi there! I understand you're seeing a yellow screen at startup when trying to launch the Typing Land app and then nothing else happens. I'd like to help figure this out with you.

First, just to clarify a bit:
- Does the yellow screen appear immediately after you launch the Typing Land app, or after a bit of loading?
- Have you noticed if any other apps or your whole Windows screen show a yellow tint, or is it only Typing Land?
- Are you running any screen filters, night mode, or color calibration tools on your Windows 10 system?

Sometimes Windows has a "night mode" or "night light" feature that filters blue light and can cause yellowish tints on the display. If that is on, it might conflict with the app's display and cause the yellow screen look. Also, certain graphics driver or rendering issues can cause display problems in apps.

Let's try some simple checks and fixes first:

1. Turn off Night Light in Windows 10
- Click Windows Start > Settings > System > Display
- Look for "Night light" and toggle it off if it's on
- Restart Typing Land and see if the yellow screen issue persists

2. Update your graphics drivers
- Press Windows key + X and choose Device Manager
- Expand "Display adapters"
- Right-click your display adapter and select "Update driver" > "Search automatically for updated driver software"
- Restart your PC and try the app again

3. Run Typing Land as Administrator
- Right-click the Typing Land shortcut or executable
- Choose "Run as administrator"
- Check if it opens normally without the yellow screen

If you've tried any of these or if the yellow screen is only with this app, it might help to also check Typing Land's compatibility mode:

4. Set Compatibility Mode
- Right-click Typing Land app > Properties > Compatibility tab
- Check "Run this program in compatibility mode for:" and select Windows 8 or 7
- Apply and try launching again

Could you please try these steps one at a time and let me know your results? If it still doesn't work, we can continue deeper troubleshooting from there!