I am using the breadcrumb trail from the template site provided in my project, and it runs fine.
However, I changing a value in the file to private int _maxLength = 500; from the default of 60, to allow more of the breadcrumb to appear - however, its not!
Any ideas would be appreciated...
Did you build a new DLL-file in Visual Studio? Did you check that the control doesn't have a MaxLength property set from the place where it's added?