Loves To Sleep

Hello, is there a way to reduce the size of the adds on the right side of the page? Because the post size is now very reduced, at least on my computer, in other words, before the threads and following posts were spread across my screen, now there just on the left portion of my screen. Hope I am explaining this, so you can understand what I am saying. Is there a remedy please, its hard to read this way?
Thanx