My problem is, that when I am using the First Look Viewer, all prim objects seem to release particle when clicked, or when teleporting, using animations, and sometimes even moving. These partciles are either red or blue, and seem to be shaped a bit like tringles, though I can't see them as anything else as blurry cloud coming from prims. They come from all prims, hair, clothes, shoes, furniture etc. Not all the time, but when they are active in some way, or when I tp somewhere and they load.
I can and do turn particles off usually now when using First Look, but I still would like to see particles sometimes. I use quite old iMac, which has an old graphic card (GeForce 5200) with 64 Mb memory, and I know it isn't best possible, but is this about my lousy graphic card, or is it just a feature of the viewer? Those particles can get quite annoying at times. They do come out of other peoples prims too, not just mine, and from their hair etc.
Otherwise the First Look works fine, and at peak hours even better than the old one. Even crashes less.