Fix for bug #10542: changing particle visualisation type from object to

something else didn't work correct.
Fix for bug #10478: particle system point cache problem.

source/blender/blenkernel/intern/particle_system.c

@@ -4763,6 +4763,9 @@ static void system_step(Object *ob, ParticleSystem *psys, ParticleSystemModifier
 				psys_update_path_cache(ob,psmd,psys,framenr);
 			}
 
+			cache->simframe= framenr;
+			cache->flag |= PTCACHE_SIMULATION_VALID;
+
 			return;
 		}
 		else if(ob->id.lib || (cache->flag & PTCACHE_BAKED)) {