Fix iPhoto 11 print quality

Hello all,

My wife scrapbooks our photos, and has recently upgraded from her old computer to a brand new MacBook Pro. She is a big fan of "if it ain't broke, don't fix it", so has been using iPhoto 6 on MacOS 10.4.11 on her old computer. She now has iPhoto 11 on MacOS 10.6.8.

The problem is when she goes to print a photo, the quality is much worse than it used to be. We are using the same printer, photo ink, and photo paper as before, and printing the exact same photo, on "Best Quality", and the comparison is laughable. The overall color is dingy/yellow/darker compared to the old print.

I'm hoping that there is some setting (or multiple settings) that were introduced or the default value changed inbetween iPhoto 6 and iPhoto 11 that is causing this difference. Can anyone tell me what I can change to make it print out good photos again? Or suggest things to try?

In the print dialog box, we have already tried changing the "Color Matching" preference from "Vendor Matching" to "ColorSync (automatic)" and that didn't make a noticeable difference. We looked over the options listed under "Real Life Digital Photography", but nothing seemed to jump out at us as a likely fix, and I am reluctant to keep printing out photo ink to try each setting individually.

The other option I considered is to try to uninstall iPhoto 11 and reinstall iPhoto 6. I have verified that it should work on Snow Leopard, but I don't know if the iPhoto Library is already modified such that iPhoto 6 will not recognize it. Does anyone know, or know of any other problems with going this route?

Thank you for any help you can give.

-Joe