'Connection reset by peer'

Hello,
I am trying to connect to my MS-SQL2005 databse but getting error 'connection reset by peer' plz help..
Mon May 25 15:48:53 GMT+05:30 2009 Connection reset by peer
com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(Unknown Source)
com.microsoft.sqlserver.jdbc.TDSChannel.read(Unknown Source)
com.microsoft.sqlserver.jdbc.TDSReader.readPacket(Unknown Source)
com.microsoft.sqlserver.jdbc.TDSReader.readPacket(Unknown Source)
com.microsoft.sqlserver.jdbc.TDSCommand.startResponse(Unknown Source)
com.microsoft.sqlserver.jdbc.TDSCommand.startResponse(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection.sendLogon(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection.access$000(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecute(Unknown Source)
com.microsoft.sqlserver.jdbc.TDSCommand.execute(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
java.sql.DriverManager.getConnection(libgcj.so.7rh)
java.sql.DriverManager.getConnection(libgcj.so.7rh)
jdbcom.lsjdbc.LSDBSelect.init(LSDBSelect.java:89)
jdbcom.lsjdbc.WorkerThread.processData(WorkerThread.java:20)
jdbcom.dbside.DBAction.process(DBAction.java:158)
jdbcom.lsside.LSAction.run(LSAction.java:220)
java.lang.Thread.run(libgcj.so.7rh)
Anshul Pathak
Libsys Corp