I am obviously a newbie. I chose the plain Yoghurt to work with and want to move a block. I watched the movie and it looks easy but I can't get it to work.

I select edit mode, the edges turn red, I highlight the block to be moved in gray. I left click on the block and select "Move" and a four way white arrow comes up. I left click on the block to drag it to a new location and . . . . nothing.

This is burning me up that the guy in the video takes 2 seconds to do it and I have spend an hour trying different things to make it work. If I can't get this to work what are my chances when I want to do something more difficult?

I would appreciate any ideas.

Thanks.