Hi all, I am new to pgsql family.I had a problem with installing postgres8.1 i was getting the following error at the 4th step of installation the error is as follows: Data directory error: The specified data directory is not empty If you have an existing database with teh same major version number,you do not need to initialise a database cluster. If you have an existing database with the same major version you need to backup your old database and create a new one. why this warning actually arises.If I install by unchecking the initialise database cluster then the next three steps of installation procedure is not shown.It goes directly installation and starts installation after some time a fatal error arises saying accont not matching.................... and rolls back.i have tried it with lots of account names and lot of super user names.The steps i was talking about are as per the given link. http://pginstaller.projects.postgresql.org Can any one give the solution to this problem.Please suggest solution to overcome this problem ASAP. Thanks in advance, Venu. ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com