Strange View of Pictures after editing in Photoshop

Hi there,
I have a small problem with Aperture. After editing in Photoshop, Aperture
views a picture in a strange way. I have exported the file to Photoshop in tiff,
16bit and 300dpi).

Before (jpg, 96 KB):

http://farm1.static.flickr.com/204/4726300116ae8d180e9o.jpg

After (tiff, 1,55MB):

http://farm1.static.flickr.com/212/472630013fe71c5fe8co.jpg

Has anybody ever seen a problem like this yet...?

Cheers, Mactheny.

iMac 20" Intel Mac OS X (10.4.9)