What's the story with gdm?

[Mark Shacklette <jmshack home com>]

Does gdm work?  I've tried to use it, and each time have met with failure. 
>From postings on the net, it appears that there may be some problems with it. 
Does anyone have it working?  I'm wondering if I'm just missing something, or
if there is some core problem with its functionality.

Thanks,

Mark