Photoshop jaggled edge problem?

Question: Photoshop jaggled edge problem!?

hi everybody
i work with photoshop CS3
please see following screen shot :
http://f14f21!.googlepages!.com/frog_prob!.!.!.!. (~150 kb)
as u can see i cropped a frog from lower layer
i cropped with pen tools with anti-aliased selected and feather zero
my problem is that why is my edge so jaggled and how can i figure this problem out
any suggestion appreciatedWww@QuestionHome@Com

Best Answer - Chosen by Asker:

The image is fine! You are viewing it at more than 200% (you are zoomed in)!. If you zoom back out to 100%, the slight jagginess you see will go away!. Any image that is zoomed in will show this, because you are visually making the pixels bigger (but not actually changing the size)!.Www@QuestionHome@Com