Changes in the initial logon page

Hi All,

I am trying to change the look and feel of initial logon page. I have imported com.sap.portal.runtime.logon.par in to NWDS. I made some changes in one of the text file and uploaded the par file to portal server.

Now it seems that i lost my login page and it gives me portal runtime error. I have the backup of the original com.sap.portal.runtime.logon.par file.

Can anyone has faced this problem and what is the solution for this problem.

Thanks in advance !

Bhavesh