This is strange. I'm using IE to browse and post right now, and I see nothing wrong.
Does it just randomly times out when you move around the website? Or anywhere specific? Does it give you an error code when it hangs?
I must admin I'm using Chrome as my default browser, but I've tested the site using Firefox, Opera and IE, and everything was fine. Try to clear your browser cache and maybe cookies too. We did move the site around a bit, so you might still be using old cookies or session info in your browser cache somewhere.
But we'll figure this out, so please give us more info. We really want to be sure the site loads fast for all the major browsers.