In version 0.9.8 one page per file does not work.  I removed it and downloaded 0.9.7 and it works correctly.

Another user commented on the same thing and was told JPG doesn't support multiple pages and of course I think he new that.  I use the JPG format with one page per file checked so that it makes seperate pages but compresses them.

A single file is made and the %d character is at the end of the file in 0.9.8 while  in 0.9.7 the %d is the page number.

Thanks