"Refresh" means about the same on either a Wintel or Apple computer, Stan. It's simply you clicking the button that's (Usually) shaped like a curly arrow, on or near the top of the page. What it does is ask the server to send that page over again - nothing more. Often it sends something that's different (it's "refreshed") because your computer has stored the original page since you first booted up/turned it on this time. It does that to save time in loading - but it means you'll see what was on there earlier today, not the absolute latest.
Therefore -- during the Shootout, for instance, when I'm posting constantly -- viewers press the refresh button to see my latest posts since the posts otherwise wouldn't show up 'til the viewer changed away from the page and went back.
Understand? I hope so -- I'm not sure I do now that I've explained it. I think I got it right, though
