Hi list Please my customer received one email asking to resize a datafile and he said "According to the email you sent the datafile affected has a size more than 1gb, that could be causing the problem, because windows operating system has problems managing datafiles bigger than 1GB. .... This information is not official." I think this is definitively wrong, but I don't have nothing official to say do you have please some paper demonstrating that this seems to me ridiculous or I'm wrong and this is true. Thanks a lot. Juan Carlos Reyes Pacheco OCP -- //www.freelists.org/webpage/oracle-l