i say check the dashlaunch version. 2.29 is buggy and 2.27 is buggy. i recommend if you have a copy of your nand to create a freeboot all over again without the dashlaunch patches installed yet. compile it using multibuilder. then when you have installed freeboot to your nand. make sure your hard drive is connected. then put the original dashboard update that you downloaded from the xbox website . make sure its for the dashboard version you created your freeboot for. after you run the update. download dashlaunch 2.28. then if you have already xex menu installed in your hard drive just launch xex menu and then from there locate your usb and run the default.xex from the installer inside dashlaunch folder