i think i have a contacts problem, but not this one...

mine seems to randomly lose contacts. it's hard to pin down, but a couple of times now I've come to call someone and found their details missing. when it was the dentists number i just figured i'd missremembered entering it in the first place. but today i found my brothers number missing. that was deffinately there.

not dure if it could have anything to do with hermes, i have used it but not for a while, i can't remember the last time i called my brother from this phone so i don't really know the timeframe for the problem.

anyone else suspect contacts going missing?