why does Blender seem to select every object aside from the one I'm clicking on?

This didn’t use to be the case with some of the older versions, but I noticed that in the more recent versions of blender, right clicking to select an object always seems to select objects that are in the background of the one I’m clicking on, its extremely annoying and I’m wondering if there is any way to change it?

Hi, this can happen if you have antialiasing activated in you video setting.
Depends on your driver you can deactivate it for the whole system or for an application.
Blender has own antialiasing setting in User Preferences > System.

Cheers, mib