I run two browsers concurrently, so I can switch between both of my Hotmail accounts and both of my Yahoo mail accounts without signing out and signing back in under a different user name.
FWIW, with Firefox I see symbols on Madmodder like the pound sign and quotation marks, but with IE8 they have been substituted by square boxes since the server change. This isn't a complaint; if I'm using IE8, the intended symbol is almost always apparent from the context.
Andy