I have been writing a user-script(userjs) with jQuery recently, the way I integrate jQuery is to copy the minified code into the user- script. It had been working fine until I updated jQuery to 1.3, while on other browsers(FF3, Chrome, etc) they still work with no problems, on Opera 9.63 the page stops loading and stays blank.
To test simply copy jquery-1.3.1.js into the userjs folder and go to any websites. With v1.2.6 no such problem appears. About how to use user-scripts on Opera: http://www.opera.com/browser/tutorials/userjs/using/
