when i use the "print booklet" in inDesign CS5 it prints as a postscript file... but when i convert the postscript file to a PDF in adobe acrobat pro i only see the first page of each spread (but the program acknowledges that it's in a spread)... how do i make it so i see the entire spread in adobe acrobat?... i need to send my saddle-stich booklet to the printers

thanks for your time!