PGP Problems

Hi there, I've got PGP vs 6.5.8 running on a Linux server. I'm wanting to call PGP from PHP to encrypt emails. PGP works ok if I'm logged in as root, however when running any other user is says "A secret key is required to make a signature. Signature error". Now I've set the permissions of the files so they should be readable by the relevent users (i.e. apache or non-root users)

Just to note I have set the PGPPATH in the environment variables to ensure that it is looking in the right place for the keys.

Any help, hints etc. would be appreciated.

Got it fixed