How to properly update PCLinuxOS.
Open Synaptic
Press Reload To get current file list
Click Mark All Upgrades
Click Apply
DO NOT USE apt-get update and apt-get upgrade from the command line. This has never been recommended. If you insist on using the command line, the correct procedure is apt-get update and apt-get dist-upgrade. If for any reason the system says it is not able to retrieve a package do you wish to continue always say no, report it to the forum and try to update again later.
Please update your system weekly or every two weeks. Do not wait more than 30 days to update your system. Once a new ISO is produced and made available to the public we no longer test upgrading from older releases.