Hi supak, (sounds like a Tie name)

The Hosts file or your firewall also may be blocking Addsense. In Internet
Options, on the Advanced tab, check "Show notification about every scripting
error", you should then receive an error message when you load pages with
the Google addsense script in them (Object 'urchin' is undefined..) that
have been blocked by your Hosts file.

Since your installation is an upgrade I would suspect that it may be a
firewall compatibility issue. I know that Nortons has a Productivity control
option that will block Google Adsense, though why this would switch on by
itself when you upgrade to Vista is unknown to me.

Check with your firewall vendors for any Vista upgrades for their product.

Also there are some Addon toolbars for IE that also block Advertisements. To
test if these are the cause, run IE7 in no Addons mode (Start>All
Programs>Accessories>System Tools>Internet Explorer (no Addons)

Regards.

Google Adsense Ads show up fine here in my Vista Ultimate computer.
Perhaps your HOSTS file is blocking the following servers:

http://pagead2.googlesyndication.com
http://adservices.google.com

Also ensure that the above domains are not in the Restricted sites zone in Internet Explorer.

A large part of my internet business income is from Google Ads. As a content
provider, I use Microsoft FrontPage for a lot of my sites. Since upgrading to
Windows Vista Business, I cannot see Google AdSense ads in FrontPage, IE, or
my Firefox, so I'm pretty sure that it's Vista.