Hi there! I understand you're experiencing screen glitching with the Totally Reliable Delivery Service app on your Windows device. To help you better, could you please share a bit more detail? For example, does the screen flicker, freeze, or show distorted graphics? Does this happen right when you launch the game, or during gameplay? Also, have you noticed if this happens only with this app or with others too?

In the meantime, I can suggest some general steps to troubleshoot screen glitches in the app:

1. Update Graphics Drivers: Outdated or corrupted graphics drivers can cause display issues. On Windows 10, you can update them by:
- Pressing Windows key + X and selecting "Device Manager"
- Expanding "Display adapters"
- Right-clicking your graphics card and choosing "Update driver"
- Selecting "Search automatically for updated driver software"

2. Check Game Updates: Make sure your Totally Reliable Delivery app is fully updated. Developers often release fixes for graphical bugs.

3. Adjust Graphics Settings In-Game:
- Lower settings such as resolution or disable advanced effects like Anti-Aliasing or V-Sync.
- If the app supports DirectX 12, and you have it enabled, try switching to DirectX 11, as some users reported screen flashing issues related to DirectX 12.

4. Verify Game Files (if on Steam or similar):
- Right-click the game in your library.
- Select "Properties" > "Local Files" > "Verify Integrity of Game Files".
This will replace missing or corrupted files that may cause glitches.

5. Run as Administrator:
- Right-click the app shortcut.
- Choose "Run as administrator" to ensure it has full privileges.

6. Disable Background Applications:
- Certain apps, especially overlay or recording software, can cause conflicts.
- Try closing unnecessary background apps before launching the game.

If you’ve already tried some of these, please let me know which, and we can dive deeper. Also, if you can share your graphics card model or error messages you see, that will help narrow things down.

Does this make sense so far? Would you like help going through any of these steps?