Disable Auto Mail Panel Toggle.
From version 11, Opera shows mail panel when reading feeds and several users don't like this. Mail panel can be disabled by modifying read feeds menu item action code as shown below.
If you don't know how to edit menu setup, see this. Under [Browser Feeds Menu] section, change the following line
Item, M_FEEDS_MENU_READ = Read mail, "rss",,,"Mail Newsfeeds"to
Item, M_FEEDS_MENU_READ = Read mail, "rss",,,"Mail Newsfeeds" & Set alignment, "hotlist", 0Update: Apr 13, 2011