I use password safe V3.28 (4783) on a Windows 7 desktop. It has worked faultlessy for several years. The password database has 265 entries at present. After any change to the password database the programme is set to save .ibak files to a network storage device. It has just stopped working. I have rebooted both the Windows 7 system and the NAS and checked that the files on the NAS are accessible, which they are. my backup files have names relating to date and time rather than number (I have read of the 999 problem). I have 762 .ibak files. I welcome advice on what to do, with thanks.