I have Ultimate Family Tree on my XP machine at home (Pentium 3). Had to install the Patch26 fix to get it to work. No problems. I installed at work today, used the same patch but the program won't start - I get a very quick flash of a white screen as it attempts to start and then doesn't. Am thinking it is because the work machine is a Pentium 4. Any idea's as to what I can do?