Ugee Dual Monitor Issue

Hello!

So I recently updated my computer and now my tablet has been acting differently, and I don't know what to do in order to change it back to how it was before.

Before the update, my tablet's pen would only function on my one primary monitor (I always have two going, the other for photo references). It worked perfectly, the pen was perfectly calibrated, everything worked smoothly and I had no issues.

Now after the update, the pen functions with both monitors, and when I try to draw with Photoshop on my primary monitor, it feels off - like the pen isn't calibrated correctly and it's just not working the way it used to. It's like the tablet/pen has a wider scope than it did before so the pen is compensating for that size by acting "off-center", if that makes any sense.

I've tried messing around with the tablet settings and the "scope" options, and I've tried changing the Pen Area to half the size, but nothing I've tried works.

I hope what I'm saying makes sense! I just want my pen to focus on my primary monitor, not both, because otherwise it isn't on-point and accurate.

Please let me know your suggestions! Should I reinstall the Ugee driver or is there some setting I should change with my computer? Or as a totally last resort, do I need to just order a whole new tablet?

My computer is an Acer Aspire TC-710, 64-bit, Windows 10, I have a NVIDIA graphics card if that matters, and I can't see what model my Ugee tablet is because it's worn off, but I'm pretty sure it's the M1000L. I'm using Photoshop CS6.

Thanks in advance for your suggestions!