NT3.51 slow file access

[Marc C. Poulin]

Hi:
  We have a network of Unix (Solaris 2.6) and windows 95 machines. We
currently run samba v1.9.18p10 on one of the unix machines to share
user's home directories, and a common directory for projects
(/doc). Our Win95 machines work fine when it comes to accessing the
unix machine's data.  

We recently added an NT 3.51 machine (running Citrix WinFrame, fyi) to 
the network.  Using the File Manager, we added two network drives: A
for the home directory, and B for doc.  When users log in, they map to 
their home directories properly, they can browse normally.  The same
goes for the doc directory.

However, when a user attempts to load or save a file from their home
directory, it often takes an inordinate amount of time to bring the
file into the application (Word, for example). Sometimes 3-4 minutes
to load a 20K file. The problem is not server load or network
congestion.  Loading/saving files locally to the NT machine happens at 
normal speed.  Interestingly, often after a file loads very slowly
from a user's home directory, subsequent loads and saves of the same
file will happen at a more reasonable speed.  Also, we seem to have
random permission problems when attempting to save files to the doc
partition. (i.e. the user gets a permission denied or disk full error
when attempting to save). I've appended our smb.conf and testparm
dump.

thanks in advance for any assistance,
Marc Poulin

-------------- /etc/smb.conf --------------------
[global]
	workgroup = WORKGROUP
 	printing = bsd
        printcap name = romana:/etc/printcap
        load printers = yes   
        create mode = 660
        guest account = guest

[homes]
        guest ok = no
	read only = no
[doc]
	path=/export/doc
        guest ok = no
        read only = no
	alternate permissions = yes
        create mode = 660  
------------------------------------------------
Load smb config files from /usr/local/samba/lib/smb.conf
Processing section "[homes]"
Processing section "[doc]"
Processing section "[tglaptop]"
Loaded services file OK.
Press enter to see a dump of your service definitions
# Global parameters
	debuglevel = 2
	syslog = 1
	syslog only = No
	protocol = NT1
	security = SHARE
	max disk size = 0
	lpq cache time = 10
	announce as = NT
	encrypt passwords = No
	update encrypted = No
	getwd cache = Yes
	read prediction = No
	read bmpx = Yes
	read raw = Yes
	write raw = Yes
	use rhosts = No
	load printers = Yes
	null passwords = No
	strip dot = No
	interfaces = 
	bind interfaces only = No
	networkstation user login = No
	password server = 
	socket options = 
	netbios name = 
	netbios aliases = 
	smbrun = /usr/local/samba/bin/smbrun
	log file = 
	config file = 
	smb passwd file = /usr/local/samba/private/smbpasswd
	hosts equiv = 
	preload = 
	server string = Samba 1.9.18p10
	printcap name = romana:/etc/printcap
	lock dir = /usr/local/samba/var/locks
	root directory = /
	default service = 
	message command = 
	dfree command = 
	passwd program = /usr/local/samba/bin/smbpasswd
	passwd chat = *old*password* %o\n *new*password* %n\n *new*password* %n\n *changed*
	passwd chat debug = No
	valid chars = 
	workgroup = WORKGROUP
	username map = 
	character set = 
	logon script = 
	logon path = \\%N\%U\profile
	logon drive = 
	logon home = \\%N\%U
	remote announce = 
	remote browse sync = 
	socket address = 0.0.0.0
	homedir map = 
	announce version = 4.2
	max log size = 5000
	mangled stack = 50
	max mux = 50
	max xmit = 65535
	max packet = 65535
	name resolve order = lmhosts host wins bcast
	packet size = 65535
	password level = 0
	username level = 0
	keepalive = 0
	deadtime = 0
	time offset = 0
	read size = 16384
	shared mem size = 102400
	coding system = 
	client code page = 850
	os level = 0
	max ttl = 14400
	max wins ttl = 259200
	min wins ttl = 21600
	lm announce = Auto
	lm interval = 60
	dns proxy = Yes
	wins support = No
	wins proxy = No
	wins server = 
	preferred master = No
	local master = Yes
	domain master = No
	domain logons = No
	browse list = Yes
	unix realname = No
	NIS homedir = No
	unix password sync = No
	time server = No
	ole locking compatibility = Yes
	printer driver file = /usr/local/samba/lib/printers.def


# Default service parameters
	comment = 
	copy = 
	include = 
	exec = 
	postexec = 
	root preexec = 
	root postexec = 
	alternate permissions = No
	revalidate = No
	default case = lower
	case sensitive = No
	preserve case = No
	short preserve case = No
	mangle case = No
	mangling char = ~
	browseable = Yes
	available = Yes
	path = 
	username = 
	guest account = guest
	invalid users = 
	valid users = 
	admin users = 
	read list = 
	write list = 
	volume = 
	force user = 
	force group = 
	read only = Yes
	max connections = 0
	min print space = 0
	create mask = 0660
	force create mode = 00
	directory mask = 0755
	force directory mode = 00
	set directory = No
	status = Yes
	hide dot files = Yes
	delete veto files = No
	veto files = 
	hide files = 
	veto oplock files = 
	guest only = No
	guest ok = No
	print ok = No
	postscript = No
	map system = No
	map hidden = No
	map archive = Yes
	locking = Yes
	strict locking = No
	share modes = Yes
	oplocks = Yes
	only user = No
	wide links = Yes
	follow symlinks = Yes
	sync always = No
	strict sync = No
	mangled names = Yes
	fake oplocks = No
	printing = bsd
	print command = lpr -r -P%p %s
	lpq command = lpq -P%p
	lprm command = lprm -P%p %j
	lppause command = 
	lpresume command = 
	queuepause command = 
	queueresume command = 
	printer = 
	printer driver = NULL
	printer driver location = 
	hosts allow = 
	hosts deny = 
	dont descend = 
	magic script = 
	magic output = 
	mangled map = 
	delete readonly = No
	dos filetimes = No
	dos filetime resolution = No
	fake directory create times = No

[homes]
	read only = No

[doc]
	alternate permissions = Yes
	path = /export/doc
	read only = No

[IPC$]
	comment = IPC Service (Samba 1.9.18p10)
	path = /tmp
	status = No
	guest ok = Yes