Calendar not working properly

[Gaegamel]

I'm not sure, whether this is really important, but i found a bug, relating to teh Calendar.
I wanted to look at the Birthdays section for 2010, but everytime i clicked the Eveentreminders-option: Birthdays, i came to 2007. Eighter December or January.

Hope, others had that problem too and it will be fixed asap.