trying to print: printed image too small...

[mhcbc]

Hi there,

I'm trying to print to 4x6 photo paper.

I've selected a photo in iVMP, I then choose Print: 'Media Sheet' seems to be my only option; 'Scale to Fit' also seems to me to be the right option, otherwise I end up printing just the corner of the photo); in 'Page Setup' I choose my colour printer (Canon iP4300) and 4x6 borderless for Paper Size... scale I leave at 100%.
I then choose 'O.K.' and 'Print', and this brings up my Mac Finder Print dialog box. In this one, I choose the Canon printer again, and in 'Paper Handling' I choose the 4x6 borderless paper. I select 'Scale to fit paper size' and then choose 'Print'...
and each time I get a small print of the photo... about three inches wide.

I have tried changing some of the settings, but nothing I do has worked.

Is there something obvious that I'm missing? Am I 'Scaling' it down twice, or something?

Thanks for your help,
Malcolm