I did a google search and did not come up with anything on this. I loaded Gastman on a Windows 2000 pro PC and it will not work. It says the following. gastman.exe has generated errors and will be closed by Windows. You will need to restart the program. I have tried to set the compatability down to Windows 98 mode. And same problem. I installed it on a Windows XP pro and it works fine. But the customer does not want to migrate to XP at this time! Is there a fix for this problem?