[phulst]

on most mac systems it will offer you a suggested screen based on your current resolution. If you're viewing it on your laptop screen you can just choose 'macbook pro 17' and you're good to go. If you move your browser over to your external screen it will typically detect that you're now on a different screen (unless that screen is exactly the same resolution), and it should tell you that. You can then do the manual calibration thingy there. At that point (and this is a feature I'm particularly proud of though it may not be used that often), you could drag the LifeSizer window from one screen to the other and it will instantly resize the item to show in lifesize whereever you move the window. Let me know if that works for you!

[Peroni]

Yep. Opened it on my monitor and it detected my macbook screen also and gave me the option of both. Really like the site. Good work.