Have you tried looking at the left lower status bar?
Hovering the mouse over objects usually shows the entity number and name.
Also instructions for tools and use are put here to the left more. This line will also tell you if someones lobby is waiting for users to join for multiplayer.
The right side has Grid reference, the clip reference when used, and the x and z coordinates of where your mouse is.
Let me know if this is not working for you.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit, Screen resolution 1680 x 1050.