First of all, I really enjoy Knoppix 6.2.1. It's the first Knoppix I've used, but it's much better than Windows. I installed to 8GB USB thumb drive, and also have persistent image (aes) on it as well. However, I'm not sure how much of a toll it's taking on the life cycle of the thumb drive. Should I be concerned? Is there a way to control how often Knoppix writes data to the thumb drive?