Every 15 seconds or so mysterious letters in little boxes show up on a displayed page, email or news feed in any of the above applications. They seem to appear above links only and last on the page for 15 seconds or so and will return again in the same time period. If I push the ctrl button it will turn the characters off but again will return. My question how do I stop these character boxes from returning permanently because they are driving me nuts. Thank you Peter
