Thanks Nathan that worked. I have no idea what the problem could be. Once I saved it as a jpeg by your method of “save for web” (which uses Image Ready) the whole list of file formats was then available in the “save as” drop down menu. Weird eh? I guess it was something about the way it was scanned origionally (the scanner is new for me).
is there different ways of encoding the same file format (ie the *.tiff that came from the scanner) in the same way that for video different codecs will produce *.avi files and you need the same codec to read the file?