Particle Animation Problem

I created a small animation using Blender 2.42a. I created a plane and did set the particle options but after 150 frames the particles seem to just vanish away. What can be the problem… The files are here

I tried changing the last frame for particle effects to 500 but that isnt helping … You check that in the blend file above .

Mordox, did you try increasing the amount of the particles emitted…??

thnx that worked !!! and also for the quick reply :slight_smile:

Thats why we are here to help each other in anyway…