Problem with Gmail, Adobe site, Opera, Safari...

Hi guys,

Hope you can help me asap.

I have installed OSX Mountain Lion few minutes ago, but I have a lot of problems...

1.) I cannot access Gmail in Opera (opera web browser) - I have the latest version, also trying reinstall it. It just says:

Secure connection: fatal error (49) https://accounts.google.com/ServiceLogin?service=mail&passive=true&rm=false&cont inue=http://mail.google.com/mail/&scc=1<mpl=default<mplcache=2 The certificate is valid, but permission denied.

I know, Opera isn't the best web browser, but because of my work, I need to use atleast 2 web browsers together... so I use Opera and Safari.

Never before had this problem with Opera.

2.) I cannot acces some sites on Safari... For example adobe.com (and it works in Opera...)

For example I cannot access adobe site:

Safari can't connect to this server

Safari can't open the page "http://www.adobe.com/ because Safari can't connect to the server "www.adobe.com".

Please help me.

Thanks,

Filip