I have been running on a WIN7 PC for some time now, but with an update to Personal version 11.8 I started to receive an error message that the executable was corrupt and to re-install it to prevent data corruption. This error has been happening also when I updated to version 11.9. A re-install fixes the error temporarily so I can use the program but the next time I try to launch Fund Manager I get the same error message. I just went back to version 11.4 and that seems to be OK. My data files are in a MY Document folder on a separate partition. Any ideas on what I should try?