CalendarExtender in a Wizard Control

This sounds like a problem I was just having. Try putting another calendarextender on the main page that you have the wizard control on. If you do not want this calendarextender control to show up, you can just put it in a hidden div section.

I had a similar problem that I solved by putting the CSS markup for the control into the main stylesheet that you use in the site. You will also need to copy over the right and left arrow gif files to your project. You can get the style info from the toolkit download that includes the source for the controls.

There appears to be an issue with merging the styles if the control is not rendered in the initial load of the page.