You can do as psyko_chewbacca suggested for XBMC and place a "default.tbn" in the folder with the "default.xbe" and then copy "default.tbn" to "icon.png/icon.jpg" or vice versa. Both dashboards will automagically use them with no need to manually set them via ...

I know this is a late response, but for anyone else who has this problem; first, try to reinstall XDK with /s switch, most likely VS received an update and that is all that is required. Microsoft Xbox Software Development Kit (a.k.a. XDK) Note: If you installed Service Pack 1 for Visual Studio (or o...