Problems with Advertisements

I have recieved a message from a Member who is having problems with Advertisements getting in the way of reading Posts.
Has anyone else having problems with this, and are concerned about computer Hacking.
Usually the Ads. are on the right hand side at the bottom after you Log In.
Also when a new Post is made an Ad. is above the post.
If this is different from yours and is causing concern please let me know. 
(See below my fornt page)

Many Thanks

Steve.