iPhoto Problem--Printing

All of a sudden, I can not print a color photo using iPhoto. Last week, yes. Today, no. I have checked out the printer (done all of the suggested maintenance tools) and still nothing. I can print a photo from SanDisk to printer, not using iPhoto, and it's fine. When I print from iPhoto, however, I get a saturated black image, not truly black and white, but almost like an overly saturated negative. I have also tried printing to a different printer, just to verify that it isn't the printer, and the same thing happens: no color, just overly saturated black image. The print preview shows the photo in color, ready to print.

I have Tiger, iPhoto 6.0, and up until today, was able to print photos from iPhoto just fine.

I can print color images in other programs--Word, test prints--just not from iPhoto. Help?

I have already rebuilt my small thumbnails, large thumbnails, and iPhoto database.

Thank you.

(If this is a duplicate, I apologize.)

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No one has any ideas?