Fresh Vista can't access some websites, including www.microsoft.co

I reinstalled Vista Business for a few times and the symptom is always the
same. Internet access to some domains(including microsoft.com, adobe.com,
yahoo.com, live.com, etc) seem to be blocked but most are accessible(like
amazon.com, google.com and ebay.com, etc).

It can't be hardware or driver problem because it's able to access most of
the websites.
It can't be the router config problem in my home network because other hosts
in same network are happy. I'm posting this question from another machine in
the same home network.

This issue stop me from using my new desktop computer. Any suggestions?
Thanks.

Regards
-Jiaqi