After hours of searching and various tries, I have finally got a calendar running on my blog. I'm using the WordPress Default 1.5 theme which does not come with the calendar. I'm running the most recent version of WordPress.
When clicking on a date on the calendar, I see the message of that date, but it is truncated (without even a link to the whole message). Since this does not happen with my other blog's calendar, I wonder, is that behavior that can be fixed?