[Typo3] Not login to admin pannel in second time

[rajesh nair]

Dear all

        When i was installing the Typo3Dummy package
installation was ok and everything work nice. For
first time logging into the Backend it was Ok. But
when I tried second time to loggin to back end with
same password and username it couldnt' accept. The
usernaem and password which i entered is
deafult.."admin" and "password"

Pls help me in this

I using Dummy package 3.8.0(zip)
Server is Uinux OS
Mysql.

My client browser is Internet Explorer.



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