Thanks to Ralph, it was a very enjoyable show. I suspect a few people weren't able to make it along due to the torrential rain and flooding in the morning, and an accident on the M5 which resulted in an hour and a half delay for one visitor.
Sorry I was not able to give the sort of demonstration FireFox2 deserved, but we didn't have an internet connection at the show. I discovered the reason why FireFox2 was running slowly, I had only chance to save out a few example web pages the night before, and they all contained external links which FireFox attempted to resolve, making it wait until they timed out. Once back home and plugged in to the world, it performed far better, as it had the night before. Peter hopefully is now working on the cause of the crashes, which were due to one of the images on drobe, and closing windows before rendering was complete.