I have the same question, I was just going to buy this monitor, now I'd better check and see if there any 64 bit drivers.
Also curious if there is any ghosting when playing fps or any games, 12ms refresh should be fast enough, but never know.
I hate returning things! So can anyone help with these questions?
Thanks much,
gary

I changed the .inf file to this:

_____________________________________________________________

;==================================
;2405FPW.INF 12/20/04 Ver. 1.0 FRA
;Copyright 1996-2005 Dell Inc.
;
;This is a setupfile for 2405FPW
;
;==================================
;
;------------------------------------------------
[Version]
signature="$CHICAGO$"
Class=Monitor
ClassGuid={4D36E96E-E325-11CE-BFC1-08002BE10318}
Provider=%Dell%
CatalogFile=2405FPW.cat
DriverVer=12/20/2004, 1.0 

;-------------------------------------------------
[ControlFlags]
ExcludeFromSelect.nt=Monitor\DELA00F
ExcludeFromSelect.nt=Monitor\DELA010

[DestinationDirs]
DefaultDestDir=11
2405FPW_Analog.CopyFiles=23
2405FPW_Digital.CopyFiles=23

[SourceDisksNames]
1=%DISK%,,,

[SourceDisksFiles]
2405FPW.icm=1

; Manufacturers
;-------------------------------------------------
[Manufacturer]
%DELL%=DELL,NTamd64

; Manufacturer sections
;-------------------------------------------------
 [DELL.NTamd64]
%2405FPW_Analog%=2405FPW_Analog.Install, Monitor\DELA00F
%2405FPW_Digital%=2405FPW_Digital.Install, Monitor\DELA010

; Install Sections
;-------------------------------------------------

[2405FPW_Analog.Install]
DelReg=DEL_CURRENT_REG   
AddReg=2405FPW_Analog.AddReg, 1920, DPMS
CopyFiles=2405FPW_Analog.CopyFiles

[2405FPW_Digital.Install]
DelReg=DEL_CURRENT_REG   
AddReg=2405FPW_Digital.AddReg, 1920, DPMS
CopyFiles=2405FPW_Digital.CopyFiles

         
; AddReg & DelReg sections
;-------------------------------------------------

[DEL_CURRENT_REG]
HKR,MODES
HKR,,MaxResolution
HKR,,DPMS
HKR,,ICMProfile

 

[1920]
HKR,,MaxResolution,,"1920,1200"

[DPMS]
HKR,,DPMS,,1

; AddReg sections
;----------------------------------------------------------------------------------

[2405FPW_Analog.AddReg]
HKR,"MODES\1920,1200",Mode1,,"30.0-83.0,56.0-76.0,+,+"
HKR,,ICMProfile,0,"2405FPW.icm"

[2405FPW_Digital.AddReg]
HKR,"MODES\1920,1200",Mode1,,"30.0-83.0,56.0-76.0,+,+"
HKR,,ICMProfile,0,"2405FPW.icm"

;------------------------------------------------------------------------------------------

[2405FPW_Analog.CopyFiles]
2405FPW.icm

[2405FPW_Digital.CopyFiles]
2405FPW.icm

;------------------------------------------------------------------------------------------
[Strings]
DISK="Dell Inc. Monitor Installation Disk"
Dell="Dell Inc."
2405FPW_Analog="Dell 2405FPW (Analog)"
2405FPW_Digital="Dell 2405FPW (Digital)"

__________________________________________________________

Great work Reyede. I just strated searching the Dell site for a WinXP x64 driver for the 2405fpw monitor and found none. I thought I was going to have to modify the .inf file myself, but it seems you've done a perfect job of it already.

BIG THANKS!