One thing that it can't do is preview. Many of the logons I download look good -- until you look at them at my monitor's native resolution, 1680x1050. Some of them appears to be designed for 1024x768. Others only provide space for three user names. Mine happens to be the last of 4. So if there is only 3, I have to scroll.
yep
people design them for the resolution they use or are capable of using.
Me, my monitor only allows 800x600, 960x600 and 1024x768
those created in LS are the easiest to fix by going in and changing the settings and/or resizing the background
I've got one or two that only show one user at a time
those modified in the file are harder to fix
at least a lot of uploaders are putting the resolution in the description