Have you updated the license?  I think from v9 to v10 you require to re-license

Please mark posts as solutions if they solve your problem!

When I try this as root:

# pgp --version
PGP Command Line 10.2 build 283
Copyright (C) 2011 Symantec Corporation
All rights reserved.
Use of this product is subject to license terms.

Only as normal user it's not usable.

Thank you for your help.

hmm, can you do the verbose one? pgp --version --verbose

paste that in please 

Please mark posts as solutions if they solve your problem!

Brings the same:

# pgp --version --verbose
pgp:version (3090:operation failed, improper initialization)

As root:

# pgp --version --verbose
PGP Command Line 10.2 build 283
Copyright (C) 2011 Symantec Corporation
All rights reserved.
Use of this product is subject to license terms.

License information:
 State: Valid
 Evaluation: No
 Expiration: Never
   ** Removed the information
 Options: Encrypt/Sign enabled
 Options: Decrypt/Verify enabled
 Number of CPUs allowed: 1-2

Passphrase cache information:
 Cache new passphrases: Disabled
 Currently cached passphrases: 0

System information:
 Operating system: Solaris
 Number of CPUs: 2

Time information:
 Time zone offset: 2:00
 Current time (UTC): 2012-07-12T14:11:48Z
 Current local time: 2012-07-12T16:11:48+02:00

File information:
 Home Directory: home/.pgp/
 Personal Directory: home/.pgp/
 Public Keyring: home/.pgp/pubring.pkr
 Private Keyring: home/.pgp/secring.skr
 Random Seed: home/.pgp/randseed.rnd

PGPsdk information:
 Runtime version: 4.2.0 release
 FIPS mode: Disabled
 Hardware RNG: Not detected

Public key algorithms:
 [EDSVG] RSA (PGP) - RSA
 [ED--G] Elgamal - Elgamal
 [--SVG] Digital Signature Standard - DSA
 [--SVG] Elliptic Curve Digital Signature Algorithm - ECDSA
 [ED--G] Elliptic Curve Shared Value Derivation - ECSVD

Symmetric ciphers:
 IDEA
 3DES
 CAST5
 Twofish
 AES128
 AES192
 AES256
 Blowfish
 Arc4_128

Hashes:
 MD5
 SHA
 RIPEMD160
 SHA256
 SHA384
 SHA512

Compression:
 None
 ZIP
 ZLIB
 BZIP2

Do you have the ability to restart the machine?  Improper Initialization leads me to deduce that something is not starting up gracefully

Please mark posts as solutions if they solve your problem!

This error is a strange one to get.

Do try rebooting as that might help.

You get this problem for a "normal" user, but not for root.  Do you get this problem for all normal users, or just this one?

For the user with the problem, please run "ipcs -a | grep 0x20" and post the result.

Thanks,