Pages only display in text form. The table and all the background colors were working and then suddenly they disappeared. Now when looking at a rep or user window, only see the text version of the tables--no background colors. Some viewers still see everything, but I have a hunch not for long. First lost it in IE9, then after I cleared my history in Firefox, it lost it there too.
My guess is your server lost it's application object variable. If you can try restarting IIS, there are some other ways to refresh application object but I don't remember how. I think editing (but not changing) and saving global.asa might work.