My ISP is AOL (BB), and I am able to sign into those sites direct from the AOL screen, so that surely rules out Win XP, AOL, ZA or any other of my anti-nasties software as the culprit (my Windows firewall is inactive, by the way)?
Thanks Kevin. Yours sounds like it was a corrupted Windows installation, or something. But the error message I'm getting seems to be simply something to do with the way I've set up Firefox.
Thanks, Octal. That link updated my Java for me, but didn't cure the problem.
But I've just found what it was -- although I'd checked the Firefox > Tools > Options > Privacy > Cookies > Allow sites to set cookies box, Excite was listed as a "block" in the list of exceptions, along with several others. Don't know how that list became populated because I've never manually blocked anything, but at least I'm sorted now.
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