I was having the same issue with IL. Update history shows everything was successfully updated but still goes into the same loop.
One thing that I did try....I redownloaded the program on my wife's computer. Seems to have worked as I get to the payment page. I did try logging in but keep getting an error that states something went wrong as if the credentials didn't match up (which I put them in correctly). Just have to checkout as guest.
So if you have another computer....I'm not sure about any other TurboTax product besides the Home & Business, but I think you can install it on up to 5 computers. For some reason State doesn't work on my computer (despite working in years' past), but does work on my wifes.
