C1W1 Grader Error "Found no NVIDIA driver on your system."

Ah, ok, I checked the C1W4A assignment and the code is different there: the “device” line is the same, but there is no “DO NOT EDIT” comment. So if you’re sure it looks the same, that’s probably not the problem. Well, have you tried getting a clean copy of the notebook and “copy/pasting” over just your completed code? That’s a bit of a pain, but that would make sure this is not the issue. There is a topic about how to do that on the DLS FAQ Thread.

But before going through that hassle, please “copy/paste” the actual exception message you are getting from the grader. That might give a better clue on whether this is the new problem mentioned on the thread I linked above or the old problem described on this current thread.