Question : Photoshop CS4 - Batch zoom into 1:1 pixel ratio? Perference? For large images... zoom ratio

The answer to this question might be very simple..

I need to set the zoom ratio of an opened picture to 1:1

Basically I don't want photoshop to automatically shrink the picture to fit my monitor...

I assume this would be under preferences, but I could not find the option.  

Why can't I just resize the zoom ratio ratio myself? Well I'm going to be automatically batching watermarks across thousands of variously sized images.. Photoshop will actually be off by 1px when laying the border down on the large images because they are 50% zoom ratio sized.  I even tried recording the function of to resize them but it does not allow that to be recorded as an action.

Answer : Photoshop CS4 - Batch zoom into 1:1 pixel ratio? Perference? For large images... zoom ratio

That said, you can use the script from here: http://morris-photographics.com/photoshop/scripts/view-pixels.html
and that should allow you to use it in your action.