To get HID demo out of the box, you should:
1) Plug the board into a USB Host (power switch can be ON or OFF, doesn't matter)
2) Press any button other than E4 (e.g. E5)
3) Press E5 to enter HID and music demo (so, just press E5 twice after plugging in USB)
You should see D83 lit (RED) and top left LED in matrix lit as well. Moving the board around should move the cursor. E1, E2, and E3 are left, right and middle clicks, respectively. If you press E8 now you are going to enter the Music demo and would have to unplug and start over to get back to the HID mouse demo.
If you have indeed flashed the board with another image, you will want to replace that image with the original one. It is on the DVD (extract "Windows 7 Sensor Development Kit.zip" and look in Firmware\Binaries), and I've posted it here as well. Enter bootloader more (press E4 after plugging into USB) and drag-drop this .s19 into the new removable drive that should show up in "My Computer".
If you have Windows 7 and the drivers installed, then press E8 twice following USB connection to enter the Win 7 sensor mode.
BadgeSensorsGreenBootloader_S19.zip
Message Edited by t.dowe on 2009-10-15 10:30 AM