I'm not sure if I've done something odd to it - to the first and 5 subsequent re-installs - but KGpg Symmetrical Encryption isn't working properly on this PC. After as noted several reinstalls and a full Windows-style reboot, after, I think, the 3rd, which made no apparent difference.
This is a today-fully-updated current PCLOS ISO install inside 2 weeks old. Should have enough grunt to run KGpg - AMD 6-core 2.8GHz Phenom-II with 8GB Corsair DDR3 - using latest PAE kernel - on a GA-78LMT series board. HDD working space seems adequate, with over 800GB to spare.
I've Googled KGpg re KDE4 - and found that there have been problems - which are alleged to have been fixed.
With KGpg Symmetrical Encryption - one should be able to encrypt files to a Passworded opening sequence, by right-clicking a file (including a Zipped directory) - choosing Encrypt File from the Menu. The dialog appears, and "Symmetrical Encryption" ticked near the bottom of the box. OK - and a small dialog appears, a password is entered, OK, and it reappears to enter the password in a Confirmation - and it should then show "Password Matches" - or in red, if it doesn't.
In my version - the confirmation doesn't occur - but at the second 'OK' the box vanishes - and a new file with a "lock" icon, and name ending in *.asc appears. When clicked on, that file should show a box demanding that the Password be inserted, then press OK. This is not happening - the file just opens unencrypted as soon as clicked.
I have nothing else enabled or configured in the KGpg application - so shouldn't be interfering.
I'm reasonably familiar with the KGpg Symmetrical Encryption function, having used it right through the KDE-3.x era...
Any ideas about what needs to be added or configured to make it work, would indeed be greatly appreciated...