? mark in preview window how to change?

See attached photo how do you change or allow for a photo to be used in place of the ? can that be done?

It'd be better if the script would use the file type detection and associate the file with an appropriate image automatically.

if you upload whatever file by using flash uploader, all of your pic icon will be '?' , this is a bug of flash that all of file uploaded will be signed as octed stream file type.

for now you can disable your flash uploader and using regular uploader instead.

You can disable your file flash uploader by going to administration -> modules -> ffiles -> setting

try using regular uploader and you will see that it works like my attached pic below

you're welcome

It worked thanks so much...........I see the new Adobe reader is able to make a preview of the document so I assume that will be something in the near feature......