Bugzilla – Bug 382048
unreadable font on X login screen
Last modified: 2008-04-23 09:51:15 UTC
The default color scheme has clear bright background (white-ish) and clear bright color for the font, which means that unless you select a user you won't see its username.
Which desktop did you install? KDE(3/4) or GNOME?
Sorry it's KDE 4.
*** This bug has been marked as a duplicate of bug 381193 ***