I wasn't aware that the plants would have a problem with different serialed versions. I guess I assumed that their own serial numbers would be good enough. Pretty strange that they would do that, really. IMO, it shouldn't matter that you won your copy of Vue 4, and I find it pretty lame of them to think so. You already bought the plants. You should be able to use them in Vue 4. Let us know what they say this time around. I don't think most companies like to see threads like this floating around in highly visible places such as this....