Its dahdao that has the problem, I was only telling him/her of my past experience with the UBoot ROM reflash. Dahdao has also put the same topic/thread over on amigaworld.net with the same title.
If I recall correctly I had the same problem. I ended up sending the UBoot rom to Sven at Stella Dreams back in October 2004 to update it to v1.1.1. I also seem to recall that the original UBoot roms could not be reflashed by software whilst in the A1.