to use and then *you have to know which PC programme to open*, just to view and save it. Utter madness! Maybe that makes sense you you but to me it is just another weird PC convention that has to be learned and lived with. In the end, it doesn't matter how simple or complex the Mac Screen-shot key combo is -- what screams out to me is that you would rather launch a foaming mouthed rant on here before you bother to launch the clearly labelled Help menu at the top of every Mac's screen. See it there, labelled "Help"? Yes? Try it. Type in Screen Capture. You will learn something. But probably not how to avoid making a complete ass of yourself online. In the English sense, obviously. Just found Techie Corner and this page, it has been very helpful and thanks to the poster. Creative Fireplaces said it doesn't work with Lion, but I just did the screen print from an App using the 4 key and it worked fine for me after pressing the space bar and a mouse click. Just one more question, is there any way to do just one screen print but be able to collect all the data from an application (i.e. where I normally have to do 2 screenshots to collect all the data from the app, some not being visible unless moving it into view on the screen first)? Maybe GIMP as mentioned in another post would do the job,