I've never had a problem with Cnet
. How about a viewer such as
JpegView instead? I've never used it but it seems to be highly regarded and isn't associated with Cnet. The Crop feature isn't immediately obvious from what I understand; you have to press CTRL and drag with the mouse to crop, and to resize you press SHIFT+CTRL+S to save the currently visible image area in screen resolution.
The Gimp is an excellent piece of image editing software, especially since its recent upgrade, but it isn't very good for skimming through a selection of images in the same way as an image viewer.