Help: User name not cached

Hi,


I've a Windows XP HOME edition PC at office. Because HOME
edition doesn't join the domain, I have to try in
userid/password whenever I need to access network
resources. Further to that, recently the userid is not
even cache (usually, it should appear the last-entered-
userid instead of a blank requesting me to fill in again
and again).

Anybody knows how to enable this login credentials cache
again?

thanks in advance,
jack