I have this same issue when accessing the store. I was finally able to download the state software - I noticed a huge lag in inputting data and when the characters appeared on the screen. It seems that there is a problem with the display on the screen. Now I am trying to efile the state and wasting many hours trying after looking on the forum for solutions (clearing cookies, running as admin, etc. Nothing works.). I have given up and printed the state return and will file on paper. Needless to say, after more than a decade with TT, this is a huge disappointment. There must be better products out there.
