If it suddenly has a bad, burnt out taste (worse than the original taste that is), then the atomizer is shot most likely. You will have to either go buy another one or wait it out. I was using these a bit too and cut back smoking by about half while I did. Then my Riva 510 showed up yesterday and I have had but a single analog today. However, because of the amount and strength of the vapor from the 510 that I was nowhere ready for, my throat and sinuses are all scratchy and feel like I have bronchitis and a sinus infection today, ever since I woke up. I've had people tell me this goes away in a few days however, but just as a word of warning, try not to go overboard when it first arrives. I went through 4 carto's in about 10 hours. So far today it's been about 7 hours and I've used a tad over 1 so far. And make sure to get a bunch of different flavors too, because there's a good chance you won't like some of them and don't wanna get stuck with something nasty, like the beer flavor I tried. To give it credit, it did taste like beer, just really old and stale beer.
