"Flipped" view upside down

Running an Optiplex 3020 desktop that had graphics card for only one display. Called Dell to upgrade to dual monitors and new video card, which they shipped and I installed in the 3020. Everything works great except....When designating either monitor to be in PORTRAIT FLIPPED configuration it displays upside down when I rotate the monitor. Logic tells me to just rotate the monitor in the other direction, but the stand only rotates one way. Can this be corrected??

Video Card - AMD Radeon R7 250 2GB

Monitor - Dell P2217H

Windows 10 Pro

The monitor will rotate in a clockwise direction on the stand, I am unable to get it to rotate counterclockwise. I have seen that some can change the display by pressing CTRL + ALT + up/down arrow, but this does not work on my set up.

Thanks in advance for offering any solution that may be available.