Run Windows Update manually and see if there's an Optional "Root
Certificates" update. If there is, opt to install it then see if the
problem persists.

Excellent tutorial:
http://www.bleepingcomputer.com/tuto...torial140.html
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/


hotwind wrote:
> yes, i'm using window's vista home basic. do i need to install the Root
> Certicate? but it's quite strange where i can access my gmail from the
> same
> pc before. i have changed the setting in internet option to accept all
> cookies as well but still doesn't work.
>
> "PA Bear [MS MVP]" wrote:
>
>> Windows version? Have you ever installed a Root Certificates update?
>> --
>> ~Robear Dyer (PA Bear)
>> MS MVP-IE, Mail, Security, Windows Desktop Experience - since 20
>> AumHa VSOP & Admin http://aumha.net
>> DTS-L http://dts-l.net/
>>
>> hotwind wrote:
>>> I'm having a problem to browse website (www.gmail.com) from my home pc.
>>> The
>>> message that i've received is "there is problem with this website's
>>> security
>>> certificate". I have no problem accessing it from my office.
>>>
>>> What does this mean? Why this website has a navigation blocked message?
>>> i've
>>> been browsing it recently without any problem from the same pc. Can
>>> someone
>>> help me on this?