Windows 7 Sidebar has disappeared

I'm using Windows 7 64bit build 7100, every time I start windows or try to start the sidebar.exe it shows up in the process for about seven seconds before disappearing again with no error code or anything.

I have tried this fix in command prompt without success:
Regsvr32 atl.dll [enter]
Regsvr32 "%ProgramFiles%\Windows Sidebar\sbdrop.dll" [enter]
Regsvr32 "%ProgramFiles%\Windows Sidebar\wlsrvc.dll" [enter]

Here is my rig information:
Processor: AMD Althlon 64 X2 Dual Core Processor 6000+
RAM: DDR2 8.0GB 800MHZ NON ECC CL5
Graphic Card: XFX Nividia Geforce 8600GTS 256MB XXX

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I looked into the Event Viewer and found this entry:
Log Name: Application
Source: Application Error
Date: 01/08/2009 05:11:07
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: DandenYas
Description:
Faulting application name: sidebar.exe, version: 6.1.7100.0, time stamp: 0x49ee9780
Faulting module name: kernel32.dll, version: 6.1.7100.0, time stamp: 0x49eeaac7
Exception code: 0xc0000005
Fault offset: 0x0000000000003892
Faulting process id: 0x1018
Faulting application start time: 0x01ca125e17c25e38
Faulting application path: C:\Program Files\Windows Sidebar\sidebar.exe
Faulting module path: C:\Windows\system32\kernel32.dll
Report Id: 55c9836e-7e51-11de-b059-001e2a4b6b0d

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Any assistance anyone could render would be greatly appreciated,
Danden Yas

Have you got UAC disabled out of interest? I know that could cause problems with some gadgets crashing in the early builds.

It might be worth trying "sfc /scannow" at the command prompt (launched as admin), just in case you have some corrupt files relating to the sidebar.exe process.