For the last two or three weeks I have been getting 3"x 3" Adverts coming up at the bottom right hand side of my monitor. I checked on line and someone said it was Chrome who was doing this and I should follow instructions given to enter at top of Chrome web page to stop them I did this with no cure at all. I then decided to uninstall Chrome completely from my computer as it was not my mail browser. Still no solution. I did the same with Opera and uninstalled it and still could not get them to stop. My Virus checker states that there is nothing on my computer to cause any Problems. Can anyone offer any suggestions as it is annoying when each advert shows up it takes over the screen and nothing else can be selected until I delete it.