I only use laptops and I've never had a problem with this sort of issue before. I was wondering if anyone knew what's going on with my lappy.
My mousepad won't work with the keyboard. For instance, when I'm holding down 'W' to walk somewhere (in Epic PW for example), it won't let me use the mousepad to pan the camera around or zoom in and out. The left and right buttons work just fine, though. When I'm not using the keyboard, the mousepad works just fine. It's only when I hold down any key that the mousepad seems to stop working.
I've just noticed this problem about 2 weeks ago on my old laptop, but I JUST bought myself a new lappy like a week ago and it's happening on this new one, too. It's a constant problem now. No matter what game I play, no matter if I'm just using a web browser, it won't go away.