I tried adding the css in the following link [http://www.telerik.com/community/forums/aspnet-ajax/grid/half-selected-row.aspx#890783], and it seemed to work, howerver we started receiving authentication prompts [HTTP 403's] because the resolved url did not exist. The url resolved to /<appname>/Grid/sprite.gif. Where would the Gird folder be located? And how can I point it to the CORRECT image location?