I did try jscreenfix but it didn't help. Thanks.
Thanks for the info on the LCD pixels. I knew some of that but never connected the dots there. It makes perfect sense now.
I've decided I'm not going to try to get it fixed. I'm dealing with it, and it's not even that big of a distraction considering I use this thing for web browsing only.
If someone reads this that knows a way to somehow reset the entire display, though, I'm all ears.