I have been using NOF since version 3 but I only use it for my own web site. I only know the basics--just enough to keep my site going. I updated from 11 to 12 a few months ago and everything was working just fine. Recently I had to change my hosting company. I was able to upload only 4 of the 147 pages to the new host company. None of those 4 pages have the background I have been using for my site. Only the home page has the banner. Banners and buttons are missing from the other pages. In the process of trying to fix it, I decided to just change the Site Style to one that was created for me in the past. It is not a standard NOF Site Style. I imported it into the software using the steps I found in the help files. But I must have done something wrong as it wouldn't allow me to use the new Site Style. (Yes, I had successfully used the Site Style on a past site.) I shut down the program and on the next day, I tried to open it again. It shuts down the program every time I try to access my site. I can create a test site in NOF and I can open it. But I cannot open anything in my real site. I get the "unstable file" message but it can not be retrieved. I have an auto back up from October. Can I just use that and if so, how? If it will help, here is the site: www.auntymdesigns.com