That is strange, but then, UBB (the software used for these forums) is quite dated, and this is not the only problem it has with non-ASCII characters.
The upside is that UBB's days here at the Ranch are numbered, and its replacement is bound to be much better in this area. So we're loth to spend time to investigate and fix problems that really are just display annoyances.
Please bear with us, it's not personal :-)
Ping & DNS - updated with new look and Ping home screen widget