Louis, THANKS… you pointed to the dirty culprit: http://www.trusteer.com/Products/pc-and-mac-security
Uninstalled Trusteer (required? by my bank) and Guess what: ALL FIXED: Blink verifies in <1 second after first pass!
Now I only have to fight the bank
And this is a good reason why website should not expect you to install extra garbage security software. Usually it causes more problems then it could ever fix.