Problem while accessing mount drive of Windows 2003

[sandeep]

I am having PCQ LINUX 2005 installed.  I want to map Windows 2003 server 
shared folders in Linux.  

I am able to map and access windows 2003 server shared folder from linux. But 
when I try to map shared folders of Windows 2003 (Domain Controller) its gave 
error previously which is like following.

Error  cli_negprot: SMB signing is mandatory and we have disabled it.  
11445: protocol negotiation failed.  SMB connection failed. 

After that I make changes to the Windows 2003 (Domain Controller) that is 
following.

Windows Registry Editor Version 5.00  
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmans
erver\pa rameters]  "requiresecuritysignature"=dword:00000000 

Now I am able to mount the Shared folder of Windows 2003 Server(DC) in Linux, 
but Whenever I trying to access that mount drive its gave 
ls : .: Permission Denied

I thought its because of the permission.  But i am mounting through user who 
having full access to that folders. but still getting above error.

Pls assist to solve this problem.


Thanx & Regards,
Sandeep S. Choughule