Safari Keeps Loading Forever

Question

Hi. I use Safari for browsing the Internet. Safari is quite nice, but a problem really annoying me for a long long time. When loading some pages, at random time it will keep loading the page forever.
Screenshot:
http://i33.tinypic.com/dy2au8.png
This will continue for about 30 seconds, but the Safari isn't crashed, the spinning ball doesn't come out too. I have already tried to empty the cache or reseting Safari, none of them helps.
The only thing I can do is either wait for 30 seconds, or quit Safari and launch it again.
What could lead to this problem? Thanks for any advices.

Answer 1

The following usually works on both Tiger and Leopard:
Empty Safari's cache (from the Safari menu), then close Safari.
Go to Home/Library/Safari and delete the following files:
form values
download.plist
Then go to Home/Library/Preferences and delete
com.apple.Safari.plist
Repair permissions (in Disk Utility).
Start up Safari again, and things should have improved.
If not, MacFixit have published a very detailed (very!) article on speeding up a slow Safari, here:
http://www.macfixit.com/article.php?story=20070416000657464
Many, including me, have also followed the advice given by others here to add DNS codes to their Network Settings, with good results in terms of speed-up:
Open System Preferences/Network. Double click on your connection type, or select it in the drop-down menu. Click on TCP/IP and in the box marked 'DNS Servers' enter the following two numbers:
208.67.222.220
208.67.220.222
Click on Apply Now and close the window.
Restart Safari, and repair permissions.