How to Change the Desktop Background Picture in Mac OS X

If you happen across an image on the web and you are using the Safari browser, you can just right-click on that picture to “Use as Desktop Picture” – this is the easiest for pictures on the web.
Otherwise you can use images that are stored on your Mac desktop or within the Finder:
The easiest way to change your Mac’s desktop background picture
* Right-click on the image you want to use as the Mac’s background picture
* Scroll down to the bottom of the contextual menu to ‘Set Desktop Picture’
* Done!
You can also use the System Preferences to change the Mac background:
* Go to the Apple menu and select ‘System Preferences’
* Click on the “Desktop & Screen Saver” icon
* Click the “Desktop” tab
* You can now drag & drop a picture into the little preview window and it will set automatically to that image

I am using Mac OS X 10.5.8 .. and i do not see the “Set Desktop Picture” option after righ clicking the pic!!
This doesn’t work with Mac 10.6.6. There’s no option for Set Desktop Picture.
This does work in Mac OS X 10.6.6, you have to select an image.
If you don’t select an image and just right-click on the desktop, you will get the option to “Change Desktop Background”
Both methods work as described.
not anymore in 10.6.7 though. It’s kinda annoying when you’ve been using it throughout 10.6.6 and it suddenly disappears.
Both methods work just fine on my 10.6.7
For 10.6.6 and above: under ‘Label’ you should see ‘Services’ – look in there, that’s where it is on mine.
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