When viewing pdf files from a network share, acrobat reader for some reason looses track of the file after ~2 hours. Then the file must be closed and opened again. It is not because the network drive i no longer available, I have checked that many times.
It is a consistent and highly annoying bug which has been present for years. Other people has reported it as well, but nothing seems to be done. PLEASE PLEASE fix it. It is driving me nuts.