Thanks for your interest. I should make clear that the installation process was successful. I went through a series of dialogue boxes and at the end got a message saying installation successful. I didn't (but now have) MRJ2.2.5 installed. Not sure of the memory situation (virtual memory 997m, disc cache default setting, RAM off. I have haven't installed LW before and just checked in preferences...only once set of LW preferences there. So all is fine until I actually go to use LW and I get this dialogue box relating to the configuration setup. cheers..Peter