Help Acrobat Pro XI will only print to "all files" even though printers show up in box

I have acrobat pro XI and now even though my functioning printer(s) show up in the box where you chose the printer you want to use, matter what i chose it always tries to save the print job as an"all files" format.  The printers are fine they work with everything else.  It is strange no matter what I pick all it wants to do is save as an "all files" file.  Anyone have any ideas??

Thanks