Juni-Pree

I'm so confused because it was working fine yesterday. Today I changed my cord because my other one was bent out of shape, and that seemed to have made pen pressure on Sai only go away??  It works in Fire Alpaca and Photoshop and all my other programs that I use, but when I opened Sai, no matter how much I tinkered with it, pen pressure wouldn't work. I even restarted my computer, restarted my drivers, reinstalled Sai and everything... I just don't understand what is wrong with it....I'm either just dumb, or something's wrong with this cord I got. I guess I'm just stuck with using fire alpaca for a while. Why is it always me that fucks things