After you have upgraded your firmware and restored your phone you will need to:
o Uninstall Light Saber
o Uninstall Accelerometer (if there)
o Reinstall Accelerometer
o Reinstall Light Saber
o Re-start phone for good luck.
I’ve No idea why the restore after upgrade doesn’t work I suspect if doesn’t restore the Accelerometer DLL that light saber relies on.
For other problems please check out the FAQ.