Trying to 'undo' several CSS options with an inline statement

I'm trying to 'undo' the style in an unnumbered list by putting an inline style statement in the 'li' tags. I have everything looking the way I want except that I'm missing the bullet.

Below is the original CSS and my inline style options to overwrite them:

#account_header li {
    border-bottom: 1px solid #888888;
    border-top: 1px solid #888888;
    display: inline;
    list-style-type: none;
    margin: 0;
    overflow: hidden;
    padding: 0 10px 0 0;
    color: #AA2222;
    font-family: "arial","helvetica";
    font-size: 16px;
    font-weight: bolder;
}

Here's what I have inside my 'li' tag:

<li style="border: none;display: block;margin: 0;overflow: hidden;padding: 0;list-style:disc outside none;">

Thanks in advance...I've wasted plenty of time on this already!

Solution

I don't think anyone's going to believe this one, but it turned out to be the overflow-x and overflow-y options. They were set to 'hidden,' and I had to look in the "computed" tab in Firebug to see it (I'm kind of a CSS newbie, so I've never heard of these before). Basically, I took Mr Lister's suggestion to do an extremely simple list, copied the computed styles into text files and used UltraStudio's compare feature to see the difference.

I wish there was an easier way to set things back to default!

Here's what I have at the moment:

<li style="border: none;display: list-item;margin: 0;padding: 0;visibility: visible;overflow-y: visible;overflow-x: visible;list-style:disc outside none;" >

Thanks for your help, everyone!