I have just had a pop up appear asking to scan my computer from something called Norton Security Scan. It offered my no options but to proceed, no close or other option to opt out. I finally managed to stop it by finding and killing the process.
I then noticed a desktop shot cut for the same. I have now deleted this and un-installed the program.
I didn't install this and the only thing I have installed today is a divx upgrade. I was offered no options to install this it effectively infected my computer.
This is an unacceptable behaviour by both Norton and Divx.