Install firmware upgrade v1.6 (available at the product page)
Install all drivers incl. "Control Center". Then start "Control Center" and activate GPS there. In addition you can place SiRFlive.exe in Windows autostart folder.
3.) Search for "Display1_DownScalingSupported" and set all findings to "1".
After a reboot the resolutions 1024x768 and 1152x864 will become available.