Well you didn't tell anything about system configuration, but most likely is the operating system. Altough EasyDivx runs good under windows98, I had freezes when tried to use it with WindowsMe. maybe a newer version of program resolve this issue. But not only DivX I had problems with under WindowsMe. had problems with some games and other programs too. Suggestion: go back to WINDOWS98 SE to enjoy the program and other programs too. For me most stable operating system microsoft release for home users. ofcource I'll wait to try WindowsXP when greek version released.