Why 2 Previews are opened?

[novetan]

My OS is EC switched from SL.

I have a folder full of images and when opened in Preview, sometimes will split into 2 Previews. Its frustrating as I need to toggle for comparison which is much easier. I re highlight and sometimes after the 2nd or 3rd try than it appears in a single Preview. It never happen in SL.

Why like that

 

[Bruno09]

Hi,

see in Preview / Preferences / General.

 

[novetan]

Hi,

see in Preview / Preferences / General.

hey. tks so much. Didn't thought of that