XP with SP1 normal Windows update...broke my ADSL Internet connect

Hello all

Using the windows update site I installed the latest updates that the scan
told me I needed. I am using XP with SP1. Once they had been installed I
restarted my computer, and what do you know I couldn't connnect to the
Internet anymore. I am using ADSL through a USB, but it was just turning my
computer off when it tried to connect, once the computer rebooted it would
turn off when ever I tried to connect.

I had to reinstall Windows XP and SP1...it still wouldn't connect! I brought
a laptop home from work and that had no problem connecting, USB or Ethernet.

Has an update (I can't tell you whcih one) in the last 3 weeks caused this
problem for anyone esle and what did you do to fix it.

Thanks for any help you can give.