Safari Won't Open My Bank Sign in

Hi!

Safari [Version 6.0.3 (7536.28.10) running on Mac OSX Version 10.7.5 on my mid-2011 iMac] about a week ago began NOT to open my bank sign-in page at Ingdirect.it, which is in Italy. The website either reports that the page is temporarily inaccessible and to try again later (*see below) or shows nothing but a big orange empty screen, while the URL bar reads "https://secure.ingdirect.it/SessionExpired.aspx," which seems illogical since the site had not been opened to have had expired. I phoned Ing Direct to ask why the site was offline and discovered it is online for everyone else; so the problem seems to be with my computer not the site.

The site had been green-lighted, with the Trusted thingy ahead of the url. The URL should read "https://secure.ingdirect.it/Login.aspx"

In the meantime, I have resorted to downloading Opera and using that browser to access my bank website. However, I'd like my iMac and Apple software to run like a top; so I'd like to fix this.

In Safari, I have:

√ Emptied Cache on the Develop menu: but when doing so, I see no sign that anything has happened, no dialog window, message, etc.

√ Reset Safari: Many times now. I preserved only my "saved names and passwords" and clear out all other options.

√ Removed Website Data on Safari Preferences's Security menu...many times, to no avail.

Many thanks!

J

*This is a copy of what the bank's message reads:

Siamo spiacenti, al momento non è possibile dare seguito alla tua richiesta.
Se sei già cliente di ING DIRECT ti preghiamo di riprovare più tardi.