IE9 and Security Certificate Errors

[AlanHo]

My wife's desktop computer suddenly hit a problem this evening. When she loads IE9 and starts to browse she is getting a window pop up from the task bar stating :-

"Internet Explorer blocked this website from displaying content with security certificate errors"

You can click it off and ignore the warning but it is a nuisance.

This is happening on every web page she loads

• I have carefully compared all the IE security and privacy settings against my computer and they are the same.
  
• We both use MS Security Essentials - again the settings are identical.
  
• I then reset all the IE settings to default using the tools > Internet Options > Advanced > Reset function
  
• I used system restore to restore her computer to the last restore point - which was 2 days ago (when all was well)
  

Despite trying all of the above, the problem remains.

Both our computers are identical self-built Intel quad core running Windows 7 Pro 64 bit and are connected to the Virgin Media modem via mains plug network adapters

Any ideas?

[Irene]

Alan, check the time and date settings.

I am sure you know how to do that, but just in case anyone else who doesn't know needs to do it, here's how:

http://windows.micro...7/Set-the-clock

[AlanHo]

Irene

You are a champ - I picked up numerous suggestions from Mr Google (mainly IE security and anti virus programme settings) - but never came across that one.

I guess that the CMOS battery is about to expire.

Thanks a bunch for earning me some house points....