[I can't figure out how to turn off the pan/scroll feature]

Thank you both so much for your help.

Ctrl+B once is what toggles View -> Fit-to-Window helps but x2 it goes back into that mode. But I'm happy to have a work around for now. 

I look forward to the zoom tool fix

[I can't figure out how to turn off the pan/scroll feature]

I'm sorry to bother you. I'm not sure what I did. I meant to press CTRL+ to zoom in on my image

I hit some other key (I don't know which but I think it was the Num Pad * key)

 

And now the image is no longer centered (or perhaps it is centered but the scrolls are extended, I'm not sure), there are scroll bars on the bottom and the top (great feature I'm sure but I'm not used to it)

 

Please can anyone help me turn it off? I just want it to go back to the way it was before. Now when I zoom in or out the image moves off screen. I included a pic to show what bars I'm talking about

 

Thank you for any help

 

(included a screenshot - bad quality, had to make it smaller than 256kb)