>Naomi, I've been visiting UT from Vista64/Windows7 64-bit for months using FF. Seems to still work fine for me. All Windows updates applied except NET4.0- but I'm not using Defender or Windows Firewall because we've standardized on Norton 2010. I wonder whether an update has SNAFU'd something to do with security?

It must be something very recent as I didn't have a problem before and now have it on 2 computers...