Jolt! motion modifier problem
 

I have a scene with 500 frames, i'd like to use the Jolt! motion modifier to shake the screen a little at frame 388.

However, when I apply the modifier to the camera and go into its interface it only allows me to use frames 0-60, the frame slider doesn't seem to go any higher, why is this happening, and how can I sort it?

Solved!
 

Aha! I managed to solve this one. The number of jolt frames available seem to coincide with the number of render frames set in Lightwave's render options. hope this helps anyone else who comes across this prob. :)