Guestbook was working..now a blank page comes up????

I had the guestbook up and working fine. Now when you try to access it i get a blank page. I have reloaded the scripts and even built a new DB. Still just a blank page. Please help

make sure that the guestbook is using a language file. Look in the config file to make sure that it is pointing to an "existing" language file. I had the exact same problem, and what had happened was that I accidentaly changed the language name in the admin control panel without realizing it. The guestbook would only load a blank page. I could not get into the admin to fix it, so I had to do it manualy through the config file. Hope that helps