Can't login with admin/1234 after following part of ``First Test''

[doomred]

Hello, I'm new to tcexam.
After successfully installed & post configured, I followed the document about "First Test'' (i.e. http://www.tcexam.org/guide_first_test.php)
All stuff went smoothly until I logged out after "Click on the Topics Management button to edit question topics.'' randomly.

At this present, I could login successfully with the account created before (as the group: student), but can not deal with the admin (tried with different broswers with lan clients & login through admin/code/index.php).
red

[nicolaasuni]

Yo can reset the admin password or create another admin account by editing the database and using the information in install/db_data.sql