anchorpoint :
It shouldn't matter what casing you are using, though most people tend to use uppercase in SharePoint-development.\n\nIt could matter though, if curly brackets are used or not. I'm not sure if this bug has been fixed in the service packs but here's a small article on the brackets:\n\nhttp://www.andrewconnell.com/blog/archive/2007/10/26/To-bracket-or-not-to-bracket-GUIDs-in-SharePoint-CAML.aspx",
2010-02-18T07:26:42