IPhoto 5 has better quality that iPhoto 6 when emailing photos?

Question

How can I set up iPhoto 6 to use the same image quality as iPhoto 5 when emailing photos?
I have two iMacs, side by side, one is G5 with iPhoto 5, and another is Intel with iPhoto 6. When I use iPhoto 5 to email a photo, medium quality 640x480, it looks beautiful. It looks like a perfect replica of a high-res photo, just smaller, but very clear. But when I do the same with iPhoto 6, again medium quality, the photo looks terrible, the image is very poor, it is jagged around people's faces with apparent artifacts of higher jpeg compression -- whereas none of these artifacts are present when emailing from iPhoto 5.
The problem with iPhoto6 seems to be that it uses a higher jpg compression thus lowering the photo quality.
To illustrate, here is the photo emailed from iPhoto5:
http://www.cinemaclock.com/iPhoto5.jpg (100kB)
and here is the SAME photo emailed the same way from iPhoto 6:
http://www.cinemaclock.com/iPhoto6.jpg (36kB)
Interesting is that when I click to email from iPhoto6 it estimates the photo size to 122kB, the same estimation as in iPhoto5, but then iPhoto6 compresses it down to 36kB.
Question: How can I set up iPhoto 6 to email the same photo quality as iPhoto 5?
iMac G5 + iMac Intel   Mac OS X (10.4.10)   iPhoto 5 vs. 6

Answer 1

I have the SAME problem!! Apple, please help how to correct the poor image quality?