Hello RBN320.
Welcome to the Microsoft Community.
From what you've described, the rippling of the screen when you open the cover or make adjustments seems to be caused by the screen and the base cable receiving an impact.
Since this issue involves hardware, we recommend you contact the Surface support team for assistance:
- Use your personal Microsoft account (not your organization account) to access the following links. Contact - Microsoft Support
- Type Surface camera, press Enter, and click "Contact Support" at the bottom.
- Select Surface - Surface Pro, then click Confirm.
- You will see contact options for Chat support and Phone support, please contact them during business hours.
Please feel free to leave us a message if anything is unclear.
Best regards,
Tamara-Hu | Microsoft Community Support Specialist