Opera looks good, but I don't like to be beaten. I would like to find out what's happening before moving on.
Why bother? IE is !!!!e Opera is a more secure, easier to use and doesn't embed itself in your system in such a way that if it gets corrupted it screws you OS up. Above all it isn't MicroSoft. Keep IE in case you find a site that won't work, like NatWest. When you do find one e-mail them and complain.