Satellite P70 Screen - Subtle Uniform Pinstripe Vertical Lines?

Just bought a new Toshiba Satellite P70. Replacing an old HP Envy.

Nice laptop so far BUT the first thing I noticed when I turned it on is that there is a very subtle uniform overall pinstriping of vertical lines over the entire screen. It's most offensive on white backgrounds (new browser tab, new Windows Explorer window..) . The darker the screen gets (blues, blacks..) the more it goes away.

I'm savvy enough to have checked a bunch of things including, "is the screen being interpolated?" (no - it's a 1920 x 1080 screen and the resolution is set to 1920 x 1080) or "maybe it'll look different if it's the Nvidia card putting the picture on the screen" (no change - I went to the Nvidia control panel and set the preference for Integrated vs Nvidia to always use Nvidia..)

I thought I'd get used to it but as an designer / animator I can't get past how every time I look at the screen - especially whites - all I see are vertical lines everywhere. SUPER distracting.

Note - I Googled this problem ... this is NOT the random white lines issue some people have. My gut says this screen / video card are not "broken" but just .... something else.

Anyone else see this? I'm going to call Support now but wanted to get a Community consensus...

Cheppachow