I thanks every body for the help and time spent on my "bug". Dear Jani.
I think this is very important issue due the security risk of a unpatched system and I think a big portion of the responsibility leis at the developers of the OS and in this case the Xubuntu team. I'm sorry that I don't have the knowledge of helping you to build a native XFCE application for this purpose. It must not be advanced as update-notifier but some how just give the users a notification to run Synaptic if there is important upgrades available. Regards rancor -- no update-notifier in xubuntu default install (was: no updates shown in system tray on xubuntu) https://launchpad.net/bugs/89263 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs