Hi, I just started using AjaxControlToolKit. For starter, I added the CalendarExtender to an existing page. Things were fine until I tried to open the page and I got the following error:"This page is missing a HtmlHead control which is required for the CSS stylesheet link that is being added. Please add <head runat="server" />" Is it obsolutely required the header tag to have runat="server" attribute? Any workaround? We are using a base page class which is derived from System.Web.UI.Page, so if I modified said class (which renders the header from the code behind), it will affect all of our existing pages. The thing is I am not sure if there will be any side-effect and if the others will approve of this approach.
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