Question Screen off center after installing new GPU

Mar 2, 2019
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So I recently just installed the Radeon r5 240 graphics card into my system, and everything is working fine except for the fact that my screen is off center and about an inch of it is cut off. There is a black bar on the left side of my screen and the right side is cut off. I cannot move the mouse onto the black bar on the left side. What is wierd is, this happened when I installed the drivers for the graphics card. Did I possibly install the wrong ones or something, even though im pretty sure that I did? Keep in mind i'm kind of a noob to this kind of stuff. Thanks!!!!

Specs:
CPU: AMD Athlon II x2 b24
Ram: 4gb
GPU: Radeon R5 240
Monitor: some ancient 19 inch square monitor from dell
Windows 10 home