Opera 11.10 snapshot windows is what I am using ,,,but opera 11 should have it... at least for windows ... I am not sure about linux but I would GUESS it works there too.
Try a standalone install in a new folder (see install options) and test ,,,,, iif it works there u many need to do a clean install of opera and import your current settings.
Rename your profile directory first (see opera:about opera directory folder) if you decide to do a clean install into a new folder.
Files of interest: http://www.opera.com...support/kb/view/313/
After the install you can move your files ...bookmarks, wand etc back.
Here's an example of how to add menu entries to the right click for links http://my.opera.com/...ox-internet-explorer