If you are using Chrome, then disabling cache helps while using it for viewing live charts during market hours unless something is wrong at the broker's end.
Oops.. forgot to mention here. They wrote back saying that I DON'T have a commodities account. I gave a feedback of "very poor". Then I got a call from their representative who said that I should ignore that "Commodities" thing in my RMS. That I still have only an equities account.
I asked them to revert to the earlier status and rectify their database, even if I am ignoring the "Commodities" value there