[ILUG] samba client problems

[Con Hennessy]

Hi all,
	I am having problems using samba a samba client(smbfs) to
mount a "share" from an NT machine.
I had it setup and it worked upto a few weeks ago. However when I went
to use it recently it will not work for me. Nothing seems to have
changed on the NT side of things. I am using Samba 2.0.5a.
I can mount the share with the following command:
smbmount \\\\server\\share /mnt/server/share -U user

I get asked for the password and the command *seems* to be successful.

However when I try to access the directory /mnt/server/share
I can see in the file /var/log/messages 
Mar  8 11:02:20 mymachine kernel: smb_dont_catch_keepalive: server->data_ready == NULL
Mar  8 11:02:20 mymachine kernel: smb_trans2_request: result=-22, setting invalid
Mar  8 11:02:20 mymachine kernel: smb_close_socket: still catching keepalives!
Mar  8 11:02:20 mymachine kernel: smb_retry: new pid=20137, generation=2
Mar  8 11:02:20 mymachine kernel: smb_dont_catch_keepalive: server->data_ready == NULL
Mar  8 11:02:20 mymachine kernel: smb_trans2_request: result=-22, setting invalid
Mar  8 11:02:20 mymachine kernel: smb_close_socket: still catching keepalives!
Mar  8 11:02:20 mymachine kernel: smb_retry: new pid=20137, generation=3
Mar  8 11:02:20 mymachine kernel: smb_dont_catch_keepalive: server->data_ready == NULL
Mar  8 11:02:20 mymachine kernel: smb_trans2_request: result=-22, setting invalid
Mar  8 11:02:20 mymachine kernel: smb_close_socket: still catching keepalives!
Mar  8 11:02:21 mymachine kernel: smb_retry: new pid=20137, generation=4
Mar  8 11:02:21 mymachine kernel: smb_dont_catch_keepalive: server->data_ready == NULL
etc

and I the error message returned is 
ls: /mnt/cmpq/engineering: Invalid argument

Anyone any idea ? 

Thanks,
Con