Turns out that it wasn't such a great idea bringing my fancy Palm T3 electronic agenda with me.
Something must have short-circuited or a misbehaved application caused me to do a hard reset. All of the data was erased in the process, thereby making that wonderful modern tool completely useless.
(Who needs modern technology during vacation anyway?)
Now I can have a fully fun and relaxing time without having constantly to consult all my important appointments, etc.