What about Amaya or even Galeon (Gnome desktop) in Linux. I use Opera on mw XP box. But, I have been very satisfied with running Amaya or Galeon on my Tux Box under Mandrake. On my Tux box I have yet to encounter any problems with pages displaying wrong. With IE it's a regular hassle though on XP. Opera only once in a blue moon. Just goes to show you how stable Tux is. In some ways though it has more to do with the way the pages and/or site are built.

Just my $.02 cents worth.