What are these curves ? :|

Hey there!
Do any of you guys have an idea that what are these unselectable colorful curves in my file?

Attach the file.

This is a display anomaly, those are not curves. Please run SystemInfo in Rhino and copy/paste the results here.

Actually by reseting my laptop the curves were just vanished!
I don’t know what was the problem at the moment!

Probably graphics card or memory issues.

Yes, it might be!
Thank you for your time.