It looks like you must have an older version of the bootloader because the Arduino Leonardo.inf file is looking for:
USB\VID_2341&PID_0036
It looks like Arduino IDE 1.0 has the Arduino Leonardo.inf that has that hardware ID.
Since I am not that familiar with the Leonardo, I am not sure the bootloader on your board is compatible with the 1.0.1 IDE.
I have seen mention in the forum that the Leonardo bootloader changed just before the official release.
Hopefully someone else can step in a clear this up.