driver problem

i'm new to using arduino. i bought arduino uno, and i installed the IDE, but the driver would not update when i tried updating it. i downloaded different versions but all were to no avail. i downloaded it again using installer as was posted, yet nothing happened, i tried both in windows xp and 7.
the board however blinks to show that it is working, but i don't know why the driver could not be updated.
any help on what to do?

CrossRoads:
Many boards have "Blink" loaded on them at delivery to show it is alive when you get it.

Post a hi-res picture of your UNO. Different boards use different UCB chips that need different drivers.

Hello,

I am totally new to Arduino. Could not find any solution to my problem any where on this forum.
I have an Arduino Nano V3.0. Im working with OS 10.9.5. Installed FTDI driver.
When I run ls -l /dev/tty.* from terminal, /dev/tty.usbserual-A400Y785 is listed.
When I run ls -l /dev/cu.* from terminal, /dev/tty.usbserual-A400Y785 is listed.
However, when I run Arduino software, /dev/tty.usbserual-A400Y785 is not listed in tools.
If have tried downloading the blink example with /dev/cu.usbserual-A400Y785 and selected Arduina Nano, Duemilanove or Diecimila and I keep getting stk500_recv(): programmer is not responding.

Can anyone help me. Thanks