No Mouse Pointer in Counter-Strike Source

My mouse pointer won't show up no matter what Source game I'm playing.

Doesn't matter if I'm moving it or not, it just won't show up at all.

This is extremely frusterating.

Any ideas?

-.-' I don't mean in game, because I haven't eve gotten there yet.

I mean in the menu, in everything there's no mouse cursor so it's extremely frusterating going through the menu and picking a game, etc.

use the keyboard to navigate to the options and controls then advance and enable console. Search the net for the command list and enter the command for the show cursor.