1. First go to Tools> Preferences> Advanced> Network,
2. Select Server name completion.
3. Now you have two options within it;
Try name completion
Look For local network machine

4. If you uncheck both of the above options, i.e.; Try name completion and Look for local network machine, Opera will stop cycling your CPU, trying to guess what you’re typing in the address bar.
5. Restart the browser after applying the settings.
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November 25th, 2007 at 8:43 pm
I don’t use Opera, but will definitely give this trick a try. Thanks for sharing! :)
November 26th, 2007 at 3:11 pm
All options that reduce efficiency should be off by default… but don’t know why developers (including MS :) ) like to have them on.
November 29th, 2007 at 11:56 am
I had used opera previously, will try out this trick.