[Plugin: My Calendar] Translation problems

Dear Everyone

I know this topic had been here a lot of times but this is extremely urgent for me.

The calendar works OK, but for some reason it doesn’t translate day names back to English. http://onsiteservice.com/calendar/ And on the admin panel, this is the only plug-in that has only Danish configuration and I don’t know why.

Would appreciate any help on this!

Thank you very much in advance!

Rus

http://wordpress.org/extend/plugins/my-calendar/