If you think you have found a bug in PGP, then first make sure that you are using the latest version for your platform. Then you may proceed with the following links:
Where to report bugs in PGPi Because most of the bugs found in PGPi are inherited from the corresponding US versions, all bug reports should be sent to NAI with a Cc: to the PGPi team. (You will probably get a response from NAI that they don't support the international versions, but don't worry about this. They are interested in hearing about problems and bug reports, although they cannot give support to users outside the US due to the legal situation.) We cannot reply individually to all reports, but check this page from time to time to see if there is a solution or patch to fix your problem. And please don't send bug reports directly to stale@hypnotech.com, as I get enough mail as it is.