The events are not shown in the charts very often.
I know this kind of an old idea (six months old), but is this still something that needs to be fixed? If so, can you provide some additional details about the issue? Perhaps a screen shot? I haven't heard of any product issues related to Calendar Events not showing in graphs. Also, note that if this appears to be an issue with SiteCatalyst, you will need to open a support ticket with ClientCare. . . the Idea Exchange is a place for suggesting new features, not for requesting fixes on support issues.
Thank you for your feedback.
I have such a ticket with all the details with the satus "Waiting-Engineering". The ticket was added in March 2009. Unfortunately, I do not see any progress and even ETA. I hope you will draw attention to this and try to push this to developers.