I have a RadMenu for our application navigation, with css styles to show what item you are on for any given page. This works perfectly fine until I am on a page with a RadGrid included. If I set  EnableEmbeddedBaseStylesheet="false"  then the RadMenu shows up fine, but the RadGrid looks HORRIBLE. How can I have the RadMenu and RadGrid both show up as they should?

Hello,

Note that EnableEmbeddedBaseStylesheet prevents registering on the base stylesheet of the control.Therefore to resolve the problem you encounter you should register the base style sheets of the grid control manually:
http://docs.telerik.com/devtools/aspnet-ajax/general-information/controlling-visual-appearance/skin-registration

Regards,
Pavlina
Telerik by Progress