[M4IF Technotes] GMC enable Encode

[SACHIN GANGAPUTRA]

Hi,
I'm using the reference MoMuSys-FPDAM1-1.0-000608 to encode with 
GMC enabled. The last few lines of my configuration file read as follows:
1|1|1	{VBV Parameters: bitrate|vbv_buffer_size|vbv_occupancy }
2	{SPRITE USAGE (0:no, 1:static, 2:GMC}
1	{Number of Sprite Points}
0	{Warping accuracy (0 -- 1/2, 1 -- 1/4, 2 -- 1/8, 3 -- 1/16)}
0	{lighting_change_in_sprite is FALSE}
With sprite usage set to 0, things work perfectly. With is set to 2, the 
encoder crashes. Am I missing some arguments that need to be set? 
Any help in this direction will be greatly appreciated.
Thanks,
Sachin Gangaputra,
Graduate Student, 
Johns Hopkins Univ.