Currently Being ModeratedDec 14, 2012 5:36 PM (in response to Beetone)
Are the margins in the Print dialog box set to different amounts (at least for the left and right margins)? If they were (accidentally) changed it's possible those values were saved for the default setting. You can also check that, in the printer-specific print dialog (the second dialog after clicking the Print... button in the Aperture [first] print dialog), the "Scale to fit paper size" option in the Paper Handling section is unchecked. Or, at the least, that the Destination Paper Size is the same as the selected Paper Size in the Aperture print dialog.