I need some help from a computer wiz who is smarter than I. I have recently installed my new tablet to my laptop. I opened paint tool sai to mess around in and it was working just fine. Then I adjusted the sensitivity to a lower setting so I could work better in sai with it. Now sai won't respond to any kind of click/press of my pen or my mouse to draw. I uninstalled and reinstalled sai and it didn't work. I decided to see if it was my tablet by opening GIMP and using that to draw, GIMP responded just fine. Any ideas what is wrong? Help please! I want to start working on being a better artist!!!