My graphics tablet (Adesso Cybertablet Z8) has been working fine for the past month, but the pen sensitivity suddenly (as in within the past hour) shot way down, to the point that my using the pen as a mouse pointer would only work if it was touching the tablet, and it would still only read the pen as left-clicking, not "moving" in the truest sense. I changed the battery and it seemed to help, but now the pen does not pick up on all of my movements and does not articulate them as well as it used to. Could someone tell me if this is a software problem, hardware problem, or both? And, if my pen is trash at this point?
Edit: okay, so it will sort of work-ish over parts of the screen where there is nothing to interact with without right-clicking, but the moment I click something, the cursor will all together stop working unless I use a mouse or the laptop touchpad. It's taking forever to render data inputs (it won't even draw a line in the program that it was working just fine in not but an hour ago), and it's overall speed is incredibly slow.