My Desktop don't refresh automatically

Well my problem is this, or at least the most annoying part of it, when I
remove any file, and it goes to the recycle folder this remains the same as
if there aren't any file on it... and to the recycle icon appear in full
"mode" I have to do a right click on the desktop, with the mouse, and press
refresh to everything became normal...

How can I put the refresh function automatic again?

Thanks...
(sorry about the bad english)