agnes.dida.physik.uni-essen.de seems to be down since last night.
Peter (you're not reading this -- your email is @agnes...), I hope nothing serious happened.
JJ
--- With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC1925.