If I'm not mistaken what most of the updaters do is search for your install directory by searching for Poser.exe. It could be the installer is simply searching your entire drive for the app. Can you click on a cancel button? Sometimes they will cancel the search and allow you to enter the directory manually. Also, why are your using ME if I may ask? Do you have the option of using 2k or xp? You will do WAY better with those OS than with ME. XP will run poser better than 2k or ME.