Michael CorganFor some time both my wife and I have been plagued when using our MacBooks (Pro and Air) both running High Sierra. When typing in Pages and Mail the cursor jumps back into the body of already typed work and inserts the next keystrokes until you realise that it has happened. There seems to be no pattern with this, and it doesn't happen to me when using non-Apple apps, for example using Entourage for emails. It is annoying. Has anyone else experienced this and if so have they cured it?