Hi Vincent!
I'm using opera since version 3.xx, I think it's 3.60 and I love it! There is no better browser than that (at least for me). Right now I'm using 7.02 and it's working perfectly, actually, never better. OK, back to your problem. I'm just thinking that your problem is actually a java, you probably just have installed opera over old version and that's it? If that is true, you got to uninstall opera, java runtime environment and java webstart and to install new opera w/java again. Save your bookmarks before, and make sure to delete opera7 directorium before new instalation. If that is not an issue, I have no idea what it is... OK,
later
levelLORD