See this help topic about the HTML output of the RadInput control:
I can suggest you two options to resolve the issue:
- Set style for all spans with riDisplay class to have normal weight.
- Set EnableSingleInputRendering="false" to use the old rendering, that does not show span over the input.
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed