This usually helps when wrong repository is added. I had this experience with my
previous installation. But the problem is that I can't disable 1'st (official) repository. And I'm not able what is wrong with configuration. Date looks really strange for me. Tried to change date in my clock, then reloaded. The same result. I felt that with reflashing this problem should gone. But it is not. Reformatted MMC card.
It is possible that something is corrupted, but after successful reflash this should be gone or reflasher should report a problem. I don't know about Nokia's flashing
util, but this is just common sence. And cash should be also clean. But this strange date is still there.