problems with samba 3

[Rainer Hattenhauer]

Hello again,

>Try:

>        map to guest = Bad User

>Browsing Samba servers anonymously (ie, no name/password) is disabled by
>default now (for obvious security reasons) - you must explicitly enable
>it.

Didn't solved my problem. I've experimented with

security = user

and 

security = share

same effect: 

you see the Linux-box from WinXP, but you can't browse it.

Searching for the problem goes on....

Rainer