Sure - i'm using Windows XP.
It's confusing the mess out of me, because nothing does anything at all. I haven't used inkscape in a bit, but I could have sworn it wasn't that long ago that it worked (maybe a couple of months ago). But yesterday I tried and it was doing this. I was using 4.6 at the time so I updated to 4.7 and it still did the same thing.
To explain further: let's say I click on

and try to make a shape. It will let me click on that button just fine, but when I try to drag to make a shape, it just acts like I'm not even clicking at all. I've tried with my wacom as well, but it does the same thing. Very confused - feel like there must be some simple setting I'm missing but can't figure it out! :-/