If you have install support for your language but even you set the encoding on your Opera browser, insist to do not want to see your language, then this is a simple trick.
Open browser and on URL write about:config
Go to section Network and HTTP Accept Charset
Add your charset (For Greek for example is iso-8859-7)
Save and exit. That's it
Also don't forget to set again: Menu - Page - Encoding - Automatic selection
Open browser and on URL write about:config
Go to section Network and HTTP Accept Charset
Add your charset (For Greek for example is iso-8859-7)
Save and exit. That's it
Also don't forget to set again: Menu - Page - Encoding - Automatic selection