Hi,
The folowing are the reg hacks I use. The server hacks are for Win2003, you will have to modify then to suit XP.

Workstation Hacks

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters]
"UseLockReadUnlock"=dword:00000000
"UtilizeNtCaching"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MRxSmb\Parameters]
"OplocksDisabled"=dword:00000001

Server Hacks

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters]
"autodisconnect"=dword:ffffffff
"CachedOpenLimit"=dword:00000000
"EnableOplocks"=dword:00000000
"enablesecuritysignature"=dword:00000000
"requiresecuritysignature"=dword:00000000
"SizReqBuf"=dword:0000ffff

>Neil,
>Tried removing the disk write cache, same result.
>BTW, how do I remove opslocking or auto disconnect?
>Yau