hy Alan,
tryed everything you sugested ; deleted several times the entry in the DB, deleted "old data", deleted the photo and deleted my log entry's and made several DB updates in the proces ....... still the same
luckly it is only with this plane that this happens, i hope that somebody at Airnav finds the cause for this, looking at the DB update tread i seem not to be the only one with this problem, so i don't have to fear it has something to do with my system/settings, meanwhile i'll just have to live with this i gues.