If you are using Opera 11 (Google It) (Wikipedia), you might find this “Reload All tabs” button useful.
Works like normal “Reload” button, but when you click and hold the button, it reload all tabs.

1) Go to this post (http://my.opera.com/community/forums/topic.dml?id=265206&t=1307669955&page=1#comment2969169)

2) Click on the link show as per below:
Click on the link!

3) Then click on “OK” on the windows below:
Click on "OK"!

4) You will see a windows as per below come out. Drag the button to your existing toolbar as per shown:
Drag it~!

5) Then as per shown below, right-click on your old “Reload” button, click “Customize“, then click “Remove From Toolbar
Remove old button!

6) Now you have a new, better reload button!
New button!

Surf intelligently~

Difficulty: 1/5
Risk: 0/5