How do i enlarge the screen

Nothing happens when you click the green + button until you first change the size.
You can change the size by dragging the lower right part of the Player window. Click the + button and it will now revert to the previous state. Click it again and it will go back up in size.
You can also use the keyboard shortcuts:
Command key + (Windows users use the Control key)
0 (zero) = half size
1 = actual size
2 = double size
3 = fit to screen
F = enter full screen mode

Yes, Apple broke or disabled this familiar function and it is the cause for many Mac users to drop QuickTime as their default player and chose either RealPlayer or VLC, both of which continue to offer the "fit to screen" option by hitting the green button.

Silly of Apple to disable or miss this important bug. No one should have to search through the menu options for additional "fit to screen" options and to suggest that it is "ok" once you go through the menu option is disingenuous to all Mac users.

Complain to Apple. Make them fix the current ongoing problems with their latest Quicktime release. It's one of the worst QT releases they have ever made.

Tim...

Version 7.2 is the first release that allows "Full Screen" playback without having to upgrade to Pro.
Until you set some preferences in the Player, or adjust the file you're viewing, the green "+" button really doesn't know just what to do.
So it does nothing.
Up to the users to read the Help files or figure this out, I guess.

I used to be a PC owner until I switched to Mac. When I am on CNN.com and I want to view a video it comes up in a 2x3 screen. On my PC I could just doubleclick and it would fill my entire screen. How do I watch the video on my mac in full screen?

Thanks

Thank you so much. Since I am a novice can you please give me a step by step. I don't even know how to find the menu.. Sorry but this MAC thing seems so cool...I just want to jump on the band wagon.

Rookie of the year!

The author of the Web page decides the dimension of the file and only files that open directly in the QuickTime Player app can be resized.

You could also consider using the zoom feature in Universal Access (under System Preferences). By default command-option-8 will turn this feature on. Then you can press command-option-plus and command-option-minus to zoom in and out. This works in any application and for any type of media (video, DVD, still, etc.). In any case, note that this won't increase the resolution of the video, it just makes the image larger.

OS2Guy -- the window zoom button (green window button) isn't supposed to work the way you describe it. In fact, the behavior in QuickTime 7.2 matches Apple's guidelines which I repeat below (taken from "Apple Human Interface Guidelines"):

"If the user changes a window’s size or location by at least 7 pixels, the new size and location is the user state.The user can toggle between the standard state and the user state by clicking the zoom button. When the user clicks the zoom button of a window in the user state, your application should first determine the appropriate size of the standard state. Move the window as little as possible to make it the standard size, and keep the entire window on the screen. The zoom button should not cause the window to fill the entire screen unless that was the last state the user set."

This is useful behavior (the way Apple describes it) since you can resize the window manually (by dragging) to any size that you wish and then toggle between that size and the "standard size" (which in the player is 1X or 100%). Then if you really want to zoom to a more-or-less fixed size you can use the menu commands (or keyboard shortcuts) to zoom to 2X (command-2) or fit-on-screen (command-3) or even 50% (command-0).

That function doesn't make sense for a video app.
You frequently will want it to full as much screen space as possible, it should be easy to make it do that.
There's no reason to make a video app resize behaviour exactly the same as say a web browser. They're very different apps.

What you are proposing QuickTimeKirk is a work-around. Prior to the QT update users did not have to do this, they simply hit the green button and the video enlarged to fit the screen. Your proposal works only once, the first time you call up and view a video. If it retained the enlargement from that moment on so that every video you called up in QT would 'fit to screen' when pressing that green button, then it would be a viable option - but it doesn't and it isn't.

Again, I sit many people before my 30" Cinema screen to watch and learn vital medical procedures. As a doctor I cannot "be at hand" with each sitting and instruct each viewer in the manipulation steps you cite. "To fit to screen hit green button" was all I needed to say.

What I've had to do is change the default video player over to RealPlayer or VLC because those players retain the ability to hit the green button and fit to screen with each and every video that is played. No viewer has to fiddle with finding the menu display option.

I guess Apple believes they are helping people by adding the full screen feature and in their desire to help they have hindered a once easy to use application and jingled the money in their pockets from those who previously paid to get the full screen display option by purchasing the Pro version.

Tim...

But all you need to do is press command-f to go into a true full-screen mode with a full-black surround or any other color you desire for the background (and let's agree that "f" as in full-screen shouldn't be that hard to memorize). Alternatively, if you just want the player window to fit to the screen you can press command-3. While they may have changed the behavior from previous versions of QuickTime you can still have your "old" behavior (done with a slightly different "trigger") even while taking advantage of a new feature which previously could not be done (which is being able to toggle between a user setting size and the standard size of the video).

And, of course, if you don't like command-f or command-3 you can just define a function key equivalent using the system preferences Keyboard & Mouse setup. Thus, I just define function key F1 to act as the full-screen command. Hereafter, I just need to press F1 to go into full screen from within the QuickTime Player -- one key to press and that's all, it's even easier than using the mouse to click the "green button."

IMO, this is just a non-issue and hardly any reason to claim that there has been a large number of users who have now abandoned the QuickTime Player.

Good reply Waymen...

Frankly, if I hadn't read about this in this forum. This missing function probably would have gone unnoticed by me for many year... Apple + F key is so much easier.

Of course, but if I wanted to fit to screen with the mouse, there's now an extra click involved, or a keyboard combination. It's quite annoying.

apple please fix it

Of course, but if I wanted to fit to screen with the mouse, there's now an extra click involved, or a keyboard combination. It's quite annoying.

However, if you object to a "keyboard combination" you can define fit to screen or full screen to be just a _single_ key press by using the Keyboard & Mouse setup in the System Preferences. Thus, as I mentioned earlier I defined the F1 key (just one key -- function key 1, not command-F1) to be full screen playback within the QuickTime Player.

In any case, I can see that the change that was made in QT 7.2 has caused some problems or concerns and that is unfortunate. But given the options that are still available I don't see that it is really that big of an issue.