I cant drag and drop

Hello All
I cant imagine what I am doing wrong. I create material and successfully add a brick texture to my material.I then try and drag it to the cube and I get nothing. I am following everything out of the book. I have watched the tutorials on this . I am amazed that I am stuck.

Thank You in advance for your assistance

I ran a similar test, and it worked fine:

Are you on Mac or Windows?

Also, what book are you using?

Thanks.