Java Script

[horseshoes]

Hi, this is a very recent problem so I don't know what I've done??!!! When I try to look at Face book every time I hit a key it's telling me "an error has occurredin the script. Do you want to continue running scripts on this page? Yes/No" Whichever one I choose it carries on the same. On you tube - I keep gtting the message "you must have Java Script turned off or an old version of Adobe Flash Player....... Get new Version Here" This has happened since I played a tune sent to me by e-mail. What's wrong? What have I done? Please bear in mind I know absolutely nothing about computers so please don't use technical terms. Thank you.