I use the viewer also outside of DO, but 2 things I really miss:
- It's not possible to cycle through images within the folder where the first picture opened from. The built-in viewer of Windows does.
- No preload of image-files. It's much slower than e.g. ACDSee (I think I already requested this a long time ago).
@Leo: Maybe you can update your registry settings to work with Win7 x64?