Referido aqui, resolve-se assim:
Abrir IE7 – Ferramentas – Opções Internet – Segurança – Sites restritos – Sites – escrever *.sitemeter.com – adicionar.
Já está.

Click on the menu Tools -> Internet Options. Click on the tab Security. Click on the icon Restricted Sites. Click on the button Sites. Type the text ‘*.sitemeter.com’ (without quotes). Click the Add button.

That will fix the problem.