How to Bounce a Message to the Sender in Leopard’s


If you receive an email from someone that you really wish didn’t have your email address, you can make them think that they don’t. By using the Bounce functionality that is included in the OS X mail client to fool the pest into thinking that their email did not reach the intended goal. The sender will receive a notification that the email was not delivered because the addresses had permanent fatal errors and the user is unknown.

To Bounce a message from the Inbox:

1. Right-click the desired message.

2. Select Bounce from the menu.



The message will disappear from the Inbox.

To Bounce a message from the Message Window:

1. If you are viewing the trouble email, go to the Menu and select Message

2. Select Bounce.

Using Preview to Make timed Screenshots in Leopard

By using Preview’s Grab utility, you can easily make screenshots of your Mac desktop and application windows. While you can use various keyboard shortcuts to take screenshots, it is sometimes easier to use mouseclicks instead of the keyboard. Another advantage is that Preview gives you the option of taking timed screenshots that allow you 10 seconds to set up your shot before it snaps the screenshot.


1. Open Preview.

2. Go to the menu, click File, mouseover Grab and select one of the three options:

Selection – this option produces a crosshair cursor for you to click and drag around the area to be included in the screenshot.

Window – a camera cursor appears. Move the camera to the window that you want captured and left-click the mouse.

Timed Screen – you will be given 10 seconds before the screenshot is taken. This is helpful when trying to capture menus and submenus.


How to put your mac in Hibernation!

Mac OS X has this concept of “Sleep” and “Shutdown”.    

By default, “Sleep” will turn the computer off but my MacBook Pro will still have the white light, switching between dim and bright. In this case, you cannot totally switch off your MacBook Pro as you would like to do in Windows.
However, if you “Sleep” using your laptop battery, once the battery runs out, MacBook Pro is smart enough to save all contents in your RAM to hard disk. This is called a “Safe Sleep“.
Wouldn’t it be nice if we could choose to hibernate whenever we want so that if we are not using the laptop for a few hours, instead of putting the laptop to “Sleep”, which will still drain the battery, we can “hibernate” the laptop and restore our applications (as it is) when we start it up again.
Macworld has an article that contains comprehensive information about this. Here is the summary.
  • First find out what is the current setting of your sleep mode, using:
> pmset -g 
This will tell you which sleep mode you are currently on. The following displays different sleep mode:
0 – Legacy sleep mode. It will save everything to RAM upon sleeping but does not support “Safe Sleep”. Very fast sleep.
1 – Legacy “Safe Sleep”. This is the “Safe Sleep”. Everything your laptop goes into sleep, it will save everything to harddisk. Slow on Sleep and Startup.
3 – Default. As described above, when sleeping, contents are saved to RAM. When battery runs out, hibernate occurs.
5 – Behaves as 1 but applicable only for modern Mac that uses “Secure virtual memory“.
7 – Behaves as 3 but applicable only for modern Mac that uses “Secure virtual memory“.
  • For me, I am using iMac and I know that I am using “Secure virtual memory” (System Preferences -> Security), so 5 is my choice. I want my Mac to hibernate everything I sleep.
  • Make an alias in your .bash_profile under your home directory:
alias hibernateon=”sudo pmset -a hibernatemode 5″
alias hibernateoff=”sudo pmset -a hibernatemode 0″
  • “Source” your bash_profile file and your are done!
  • Whenever you want to hibernate your computer, if it is not set already, just go to terminal and execute hibernateon. If you want to turn it off, hibernateoff and you are all set.

It was known that if you want to avoid hassle setting up in command line, there is a dashboard widget, called Deep Sleep that will do the trick do. Somehow it does not work on my iMac properly.

Show hidden files and folders in Mac OS X Finder

First, open Terminal.

Type this command, then press enter:

defaults write AppleShowAllFiles TRUE
To allow the files to be shown, you must restart Finder. You can do this by holding the Option key, click and hold the Finder icon. When the context menu shows, select Relaunch.

Finder will now restart.

Now all hidden files are showing!

To hide files again, type:

defaults write AppleShowAllFiles FALSE
In the terminal instead, and restart Finder.

You can also restart finder by using the following command from the terminal:

killall Finder

Force Ejection of a DVD or CD in Leopard

Make sure you have unmount the disc by right-clicking (ctrl-click) the disc icon and selecting Eject disc.

Restart your computer. As soon as you hear the restart sound, hold the left mouse button down until the disc ejects. You can also use the bar beneath the trackpad and keep it pressed until the disc ejects.