invalid packets

[laslo at ilo.opole.pl]

Hi,

I see this error messages while trying to decrypt
a text file (Mailbox), encrypted with pgp5:
-----
]laslo|laslo[$ gpg -o mail-1998.11.13-gpg mail-1998.11.13.crypt

You need a passphrase to unlock the secret key for
user: "laslo (dsa) <laslo at ilo.opole.pl>"
(1024-bit ELG-E key, ID E2F19CA7, created 1998-11-06)

gpg: [don't know]: invalid packet (ctb=75)
gpg: [don't know]: invalid packet (ctb=6c)

gpg: Ohhhh jeeee: Ohh jeee, trying to remove an intermediate filter
secmem usage: 1632/3104 bytes in 4/10 blocks of pool 3456/16384
IOT trap/Abort
-----

Could anybody tell me what does it mean ?

I have to add that decrypting the same file with pgp5
gives no errors and decryption succeeds.

]laslo|laslo[$ ls -l mail-1998.11.13*
-rw-------   1 laslo    users      892999 Nov 14 01:05 mail-1998.11.13-gpg
-rw-------   1 laslo    users     1413473 Nov 14 01:11 mail-1998.11.13-pgp5
-rw-------   1 laslo    users      700212 Nov 13 20:43 mail-1998.11.13.crypt

Any suggestions ?

Thanks,
       laslo