Hi, new user here. Tried to find answers for why my touchpad just quit working, but I haven't found anything yet! I'm running Windows 7 (32-bit) on a Dell Latitude D420. I was running the computer, typing some homework, and then hibernated it to change classes. Booted it back up five minutes later, after a successful hibernation, and the touchpad had stopped working. I tried downloading all the driver again, but Windows isn't even recognizing the touchpad device. right now it only recognizes the USB mouse I have plugged in. I tried downloading the original driver, but I have a sinking feeling it isn't compatible with Windows 7. Does anyone have any suggestions??