Installed; everything looked good. Tried to login and got a
"Warning: Invalid argument supplied for foreach() in [webroot]\wBlog\wordpress\wp-includes\capabilities.php on line 19
You do not have sufficient permissions to access this page."
This is on a local installation (my computer, running PHP 5.05 on Apache 2x), so "permissions" have no meaning.
In passing, I note that on this site, I have seen a number of pages that don't seem to render properly with my Firefox 1.5 version.