Outlook 2007 Autocomplete Email is clearing itself

[Eurfwurm]

I have the autocomplete for Outlook 2007 enabled, and it seems like every
couple of months, the email addresses are disappearing and I have to manually
type out the email address. I am assuming that the .NK2 file is clearing
itself. Does anyone know what could be causing this? And no, I am not
sending emails saving 1000+ addresses in that file.

 

[solon]

my boss outlook 2007 got the same problem! but it never happened when he used
the outlook 2003!
can this be fixed??

solon

 

[solon]

went through the old discussions, found that there may be related with the
nk2 file,
as now the nk2 file is only 0 k!!
is the file damaged or else??

solon