chobit

Would shaw allows a non shaw DNS server access?  I am guess this can be DSN related.  At time, when there is DNS problem, you can communicate through IP address, but no with DNS Name.  One of the thing you can try is to ping an ip of a hk hosted website which you have problem accessing.  If all went well by using IP, but not through the host name (DNS Name), then it is probably the DNS server that shaw is using.

chobit

Using Google Public DNS Server:
http://code.google.com/speed/public-dns/docs/using.html

chobit

maybe they have problem with their routing tables then....?  If you know someone in other area what don't have problems accessing, maybe you can ask if you can remote into their computer, and use their system.  Maybe your work place allow remote access as well?