If you run IE 9, you can open a blank tab and "drag" the picture from the GL window into the full size tab. It's a work around, but then you can use the browser back and forward arrows to scroll through them full size, after you have dragged them all in.
Personally, I prefer the larger photos, regardless of the hassle..., but it would be nice if they allowed me to maximize it in place.
Hmm, I tried the dragging to new tab, but couldn't get it to work...
However, I did "discover" another "work-around" that is pretty easy:
* Pull up the original GL photo viewer
* Right-click off to the side of the photo (not on the actual photo)
* Right Click Menu pops up
* Select: "Open Frame In New Window"
* Another photo viewer pops up and it can be maximized (but have to scroll up/down a bit - not a show stopper though)
NOTE: You can close original photo viewer or leave in place till you're finished.
* sigh * for what GL makes from us, we shouldn't have to do these "computer gymnastics"...