I noticed while viewing the website at work that with Internet Explorer 6.0, the right side bar (which holds the site search and ham radio news feeds), is sometimes showing up on the left sidebar, under the normal items that display there.  This can be corrected by going to the View menu, and selecting Text Size, Smaller.
IE6 has known issues with style sheets, and that likely is the reason.  IE7 is probably OK.  Firefox is also OK, and I would recommend using it as your default browser.