Can this be a video card beginning to self destruct

[Amenophis]

I'm using an ASUS Rogue G750JW and now is just about 50 months old. Here's what I've noticed in the last week or so. In any Webpage, I notice only once in a while, a kind of "jumping up and down" and it does that very fast, almost a vibrating look to it. At first, it was with a news article opened and tonight, I noticed it just on the Website ... think it was Foxnews and another site that I saw this. I've not seen it anywhere else yet.
Am I looking at a bad video card or a screen going on the blink. And of course, if I understand it correctly, video cards are not replaceable in laptops which means if it is the video, it's going to be heading to the dump with this rig.
OR ... is there something else I should try before going into the depths of depression over this machine self destructing. Please advise. Thanks!

[Amenophis]

So reading xeromist's comments again, it appears Javascript is the culprit. Another quick question. If I'm assuming correctly, Javascript has a tiny insect, pardon me, I mean a bug, we have to wait for their next update to see if this issue is resolved. Let's see.
To the many who have barreled into this thread, thank you. Thank you very much!

[xeromist]

It's unlikely it's a flaw in the Javascript language itself. More likely it's the implementation used by some web developers. So Fox could probably fix it if they were aware of it, but it's such an infrequent bug that they may not know or it may be a low priority.

[Amenophis]

I've written them about it but haven't heard anything back and probably won't. Thanks for the feedback by the way! Much appreciated.