Wouldn't be the service provider. But browser settings and OS could be.

I just did some testing.

Laptop: Windows XP
Firefox - Grey
IE - Grey
Opera - Black

Desktop: OpenBSD/Gnome
Firefox - Black
Opera - Black

Phone: Treo/PalmOS
Blazer: Grey
Opera: Black

and for utter inconsistency, I checked the Opera browser on the Wii and it turned up grey.

That has to be it then...anyone viewing the black, you may be able to change browser and view it correctly!

It may be just a rendering thing as well. The grey it's set to is really really dark. #0D0D0D is what's set. MC does it give you an option to set it by number or do you just get to pick from a list of colors?

Check out here and see what it comes up as for ya.
http://www.colorhunter.com/tag/0D0D0D/1

If you can, maybe try switching to #212121? Little brighter grey but should work for people where it's showing up black.
http://www.colorhunter.com/tag/212121/1

It is currently set to 212121 the quote box is 0D0D0D

Huh. Both the quote box and the background come up as 0D0D0D when I use Colorzilla to get the numbers. The greys also look identical to my eyes on my laptop.

I went through the code though and your totally right on the different shades of grey. I'm stumped why it's showing up slightly different each place though.

For the record, no matter what shade of grey or black I end up with on any of the computers I use, it's always looked good and has been readable to me.

I get gray on the laptop and the desktop. I wonder if it is the color quality settings on the display properties menu?