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>I am loading the user control at the end of the Page_Load via a seperate method that also gets called from the grid selected index change. The control is inside an ajax panel so only the panel gets refreshed.

(I'm assuming an UpdatePanel?) - is it possible it's not detecting the changes correctly and not rendering the changes to the page? Maybe temporarily remove the updatepanel and try it. Is your postback happening from a control within the update panel? If not, you may have to set a trigger on the UpdatePanel so it knows when it needs to refresh (heck, you may have to do that even if it's inside of the UpdatePanel).