Why isn't indenting a list item using markdown working?

[Jim Constant]

I'm using markdown to create a list, some of which I want indented, but I can't get the indenting part to work. I've looked at Gruber's official syntax guide and several other guides and everything I've tried doesn't work. I'm trying to produce this:

List item 1:

    Indented item 1

    Indented item 2

List item 2:

    Indented item 1

    Indented item 2

What's the secret I'm missing?

Thanks

[Anthony De Moss]

From what I know, you can only do indentation like that with numbered or bulleted lists.

So,

*List item 1 
** Indented Item 1
** Indented Item 2

Alternatively, replace the stars with hashes (#) and you'll have a numbered list.