Evolution organizer locked

[n-kamil]

Hallo,
I have linuxmint 4.0 community kde installed and evolution as mail client and organizer, but when I trying to add new meeting to organizer its impossible because it shows "Invalid date!", and don't wants to save. Linux mint is in Polish localization then date shows: "28 mar 2008", any manipulation ends with failure. I can not install new version (actual 2.12.1), becauseof too newer depandencies. It may probubly help to change repositories to newer, but I dont know what to do that.
geetings

[Husse]

Well, this is what the Evolution home page states
Evolution provides integrated mail, addressbook and calendaring functionality to users of the GNOME desktop
Seems to me that there will be some problems in KDE