Every time I have to type in an input field, lets say search for an operator, I have to type some characters twice while other characters never appear or appear twice. Searching for 'python' in an input field results in 'pyon' or 'pytthhon' and even deleting the characters is slow and takes multiple efforts. Any ideas why?
Mac OS X 10.13 'High Sierra'
8Gb RAM
2.66GHz Intel i7