My Opera has been giving me problems lately. A lot of sites will not load, if they do load its at a crawl. I have a problem playing back maedia from sites, also the picture quality of sites is awful. Don't have this problem with IE8. It has only happened in the last week or so.
in opera 10 there is a turbo button in the bottom left corner it has three modes off, on and automatic i have had some problems with this feature regarding page loads so suggest cycling this before reinstalling opera from scratch