Calendar

Hi,
I am using a theme and the calendar widget that came with it seems to have issues with it in that it only provides a link to months in the past and only to March and February but nothing forward – and even those are buggy. When you select March it goes to a pages link and then does not allow you to go back to the current date.

Any ideas on how I can correct this and if not, what other widget can I use with this theme to present a simple calendar – no need to create entires – just to view dates forward and backwards,

Thank you,
Nuri