Hello. I just installed Reason 4 from the DVD with no problems and it works flawlessly. Use the DVD from the beginning, no image. It installs then copies the 2 sound banks and then it ejects the DVD and you have to enter the serial. Works perfectly on my Dell Vostro 1500 laptop using onboard sound (12ms latency with onboard sound!! on windows I get 49ms with the same onboard sound without ASIO drivers).