EP Instalation

Hi.

I'm trying to reinstall SAP EP Portal Sneak Preview on my PC. I uninstalled the previous one and when i start a new instalation on step "Load Java Database Content" i get the following error in the log:

07.02.06 15:07:22 com.sap.inst.jload.Jload dbImport

INFO: trying to create table J2EE_CONFIGENTRY

07.02.06 15:07:22 com.sap.inst.jload.Jload dbImport

INFO: table J2EE_CONFIGENTRY created

07.02.06 15:10:44 com.sap.inst.jload.Jload logStackTrace

SEVERE: java.io.IOException: Data error (cyclic redundancy check)

at java.io.FileInputStream.readBytes(Native Method)

at java.io.FileInputStream.read(FileInputStream.java:177)

at com.sap.inst.jload.io.SplitInputStream.fillBuffer(SplitInputStream.java:119)

at com.sap.inst.jload.io.SplitInputStream.read(SplitInputStream.java:327)

at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:213)

at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:134)

at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:87)

at java.io.DataInputStream.read(DataInputStream.java:224)

at com.sap.inst.jload.db.BlobHandler.setValue(BitHandler.java:149)

at com.sap.inst.jload.db.DBTable.load(DBTable.java:274)

at com.sap.inst.jload.Jload.dbImport(Jload.java:323)

at com.sap.inst.jload.Jload.executeJob(Jload.java:397)

at com.sap.inst.jload.Jload.main(Jload.java:621)

07.02.06 15:15:44 com.sap.inst.jload.db.DBConnection disconnect

INFO: disconnected

I really appreciate any assistence...