I am returning my TT Deluxe for a refund. I attempted to do a quick check before filing my estimated due Jan 15. I have normally done this at the office and then done the complete filing at home. Not only could I not install at home after installing at the office, but I found when I uninstalled at the office and attempted to install at home that would not work either. I then found that Intuit has installed C-dilla, a copy protection piece of software. I called Intuit and asked for an activation code to use at home. They refused (3 live agents and 1 phone agent). Intuit is entitled to copy protection but if I uninstall on one system I am entitled to be able to use it on another. They have lazy programmers who can't figure out how to do this or they have intentionally figured they could get you to pay for their product more than once.