hi, tested the truecypt 5.1a also: system is fbsd 7.0 rel creating(with keyfile and password), mounting and unmounting of a 7.64GB container works, but copying large files(about 20mb) crashes system.... small files of about 0 to 5mb work.... seems to be a tricky problem, i had that problem with the last experimental port of 5.0 too. Watermelon.