Unable to access certain websites via IE6 on XP

Hi everyone.
I've been having a problem since installing Windows XP
Home edition onto one of my pc's. I am unable to open
certain standard websites (ie:www.raywhite.com.au).

The web page continues trying to access the website (for
hours if left to it's own accord). It does not time out,
nor do I get any error messages, it simply doesn't fully
load the website.

I can access these same websites via another pc on my Lan
with Windows 2000 without any problems. I've updated to
the latest Windows Updates patches and software, but
still the problem occurs.

Does anyone have any idea on this?
Is there any cure for this problem?

Help is greatly appreciated. Ask any questions and I
will try to answer them.

Cheers
Robert