Cintiq 24HD tools not working on Painter 18

updated to newest Wacom and have had issues ever since. Tools do not work , buttons don't work, canvas rotates on its own. Cintiq is not recognized at startup. So many problems and no one seems to be able to help. I have uninstalled and reinstalled software many times. I have restarted my computer many times. Seems to work on restart but only for a brief time. Really, really messed up