HD Install :: samba error not enough disk space

Hi all

Just got my Shuttle SV24 installed with DSL frugal HD install and samba. I just want a simple fileserver box and everything is working except that when I copy files from the Windows boxes to the fileserver it hits some kind of limit on the number or size of files per directory and returns a "not enough disk space error". There is plenty of space available, according to df the drive I'm copying to is only 22% full.

Anybody got any ideas how to fix this?

Regards

Fergal

PS Here's my smb.conf:

[global]
workgroup = workgroup
server string = fileserver
hosts allow = 192.168.0. 127.0.0.1
log file = /var/log/log.%m
max log size = 50
security = share
socket options = TCP_NODELAY
dns proxy = no
encrypt passwords = yes

[homes]
comment = Home Directories
browseable = no
writable = yes
valid users = %S

[printers]
comment = All Printers
path = /usr/spool/samba
browseable = no
# Set public = yes to allow user 'guest account' to print
guest ok = no
writable = no
printable = yes

[mp3]
path = /mnt/hdb1/mp3
public = yes
writable = yes
printable = no

[photos]
path = /mnt/hdb2/photos
public = yes
writable = yes
printable = no

[videos]
path = /mnt/hdb2/videos
public = yes
writable = yes
printable = no

[share]
path = /mnt/hdb2/share
public = yes
writable = yes
printable = no

original here.