I had no problem with the lite version. The moment it was converted to the pro version, the pages where there is a flip book, are buggy. Color of headings change, font changes, backgrounds disappear etc. I already have purchased other flip books and have had similar problems.I tested your lite version and when all looked good, I purchased the pro version. I also purchased as I believed that I could change the navigation layout. I do want the side navigation arrows. However, I see no option to change this.