Login windows fonts too large for Ubuntu 7.10

The system I installed with Ubuntu 7.10 has a problem that the fonts of the login windows is too big such that I cannot see the user name I typed.

To fix this, select the menu of System->Administration->Login Window. A window will be shown for Login Window Preferences. Select the tab of security and click the "Configure X server" at the bottom of the tab. A pop up dialog of "X Server Login Window Preferences" will be shown. Under the topic of "Server settings" there is a field of "Command", append "-dpi 96" to the existing value and reboot the machine. Should be fixed now.