for nearly a year i have had an intermittent problem where suddenly my keyboard will start typing the wrong letters while using any web browser... Firefox is my default browser, so when it starts happening there its also happening in chrome. the problem is only occurring in web browsers, typing in word or note pad at the same time its occurring in browsers, is correct. The language settings on the task bar remain at us English keyboard settings, to date the only resolution i have found for the problem is to reboot the entire PC, where upon it may reoccur immediately or it will be days or weeks later.... after alot of searching i found and article by a guy who had had the same problem for over 2 years and he had discovered that the problem lady in browser addons, some of them separate from their intended purpose could "override" the system language settings.. following this idea i have gradually removed my addones after each event.. and just when i thought i had found the addon, the problem re occurred.... Any ideas ??