Just putting in my 2 cents worth - I am also experiencing problems with the Board's formatting, with lines disappearing to the right of the page. This has been going on now for about 4-5 days; exactly the same situation we had last year.
I don't think the type of browser has much to do with it. I did not change any of my browser settings last year and the problem was rectified by other means (website creators/administrators??). I use Explorer 7 still and this is the ONLY site I have problems with.