can see with NT but not win98

[Hazze]

Problem with samba and windows.
System redhat 6.2 and samba that comes with it

I  have 1 samba  user on the server
and 5 user that share this account by the file
" /etc/nameconvert"
jim = user1
jim = user2
jim = user3
jim = user4
jim = user5

the I use smb status  all 5 will show up as jim, so the account  are up
and running.

Every thing worked with mapping until I started to use a NT4 server
station
to  get NT4 to work I changed the
"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Rdr\Parameters"
a dword-field named  "EnablePlainTextPassword" to value  1.so I could
log on.

THE PROBLEM:
With Win NT 4  sever:
 I can see everything on the linux server and in the folder.
I can read, write and use the folders and files.

With: Win 98 and Win 95
 I can see the folders and files but when I try to change folder error
message " j:\temp does not exist".
The same if try to use a file like ttt.txt error message " j:\ttt.txt
does not exist" , but if I right click and use "send to:" notepad " the
file ttt.txt with
content will open.

Can anyone help me with this.

Regards
Hazze