I have been entering data for the last several years and when I really needed it today I found my data on both computers "GONE WILD". No other way to explain the problem except that several hospitalization months apart have the same data as the first hospitalization. Office visits for immunizations have a different provider. I do not know if the problem started when I downloaded the last upgrade or upgraded my system to a new HP Win 7 computer. At any rate we took our disabled son to the consultation with no paper work. Too bad this program failed us. we have the data on 2 computers one is the old VISTA software and it has the same problem. X user of this software.