Cannot retain identity logins info

tried so many times, I'm giving up.  everytime I save all my logins in manage login identity safe after the next day they dissappear.  fortunately I created a back up, but again when I restore them next day they're gone.  dealt with cust support, several different teches, including supervisors & manager, neither of them were able to help me.  I use Norton 360, windows XP, svc pk3.  Love the set up of identity safe, if it only worked.   any suggestions outthere I'm desparate.