I have found a solution that is serving me well: For the last five years I have run UFT 3.1 on Windows XP. Recently, I decided to move to a Macintosh (an IMAC, running 10.4 Tiger). I installed Bootcamp which permits a separate partition on the IMAC into which I installed Windows XP and into XP I installed my much beloved UFT 3.1 and all my UFT data. UFT runs beautifully. You may have seen my earlier query in this Forum whether UFT would run on Vista. This is no longer an issue for me. Using Bootcamp on a MAC it is possible, I understand, not only to run XP but other earlier versions of Windows.