Hello Everyone, I am playing around following script to create laser effect. Everything works great except that I cannot stop it. lol I have tried regular ways to stop Particle and Primitive mentioned in this link: http://wiki.secondlife.com/wiki/LlSetPrimitiveParams I think maybe the timer cause this primitive keep displaying. But I have already deleted following script from my item, the laser effect still there. How can I get rid of this laser effect? Appreciated your help. default { state_entry() { llLinkParticleSystem(2, [0, 307, 7, .25, 1, <1,0,0>, 3, <1,0,0>, 5, <.04,.25,0>, 6, <.04,.25,0>, 9, 2, 13, .01, 8, <0,0,0>, 15, 10, 16, .01, 17, 0, 18, 2., 10, 8., 11, 0., 21, <0,0,0>, 19, 0., 12, "", 2, .7, 4, 0.]); llSetTimerEvent(0.05); } timer() { float distance = llVecDist(llGetPos(), llList2Vector(llCastRay(llGetPos(), llGetPos() + (llRot2Fwd(llGetRot())*32.0), [RC_MAX_HITS, 1]), 1)); if(distance > 32) distance = 32; llSetLinkPrimitiveParamsFast(2, [PRIM_SIZE, <0, 0, distance*2>, PRIM_POSITION, <distance, 0, 0>]); } }