c in 2.53?

when i use shift c the cursor goes to the center, but what is the center key? id like to be able to center the screen with c but c just makes a little circle appear around my cursor…

C is circle select.
To centre your view around your curser use Ctrl+Numpad. (look under the View menu of the 3d view for all options)

ctrl+num. (numlock period) for clarity.
you can also just press the num. key by itself to center on selected object

ok thanks ill try that