This is my last ideas, before you take it to the shop
Configure Internet Explorer Security, Content, and Advanced Settings
Configure Security settings for the Trusted sites zone in Internet Explorer:
1. In Internet Explorer, on the Tools menu, click Internet Options, and select
the Security tab
2. Select Trusted sites, and then click Default Level
3. Add the secure Web site you are trying to access to the Trusted sites zone.
To do so, click Sites, type the address (URL) of the site in the Add this Web
site to the zone box, click Add, click OK, and then click Apply
Clear the Secure Sockets Layer (SSL) slate and AutoComplete history:
1. In Internet Explorer, on the Tools menu, click Internet Options, and select
the Content tab
2. Under Certificates, click Clear SSL State
3. Click OK when you receive the message that the SSL cache was successfully
cleared
4. Under Personal information, click AutoComplete
5. Under Clear AutoComplete history, click Clear Forms. Click OK when you are
prompted to confirm the operation.
http://support.microsoft.com/?kbid=326155
"The Page Cannot Be Displayed" Error Message When You Try to Start Internet
Explorer