Over the past few months, I have had so many jobs in for repair because people think that there is a problem with their machine as the Windows XP welcome screen disappears and instead the classic logon screen / Domain login screen is there instead.
To fix this, simply open up registry editor and navigate to
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version\winlogon
From here you should see a key called Ginadll with a value of mrvgina.dll - Simply delete this and you should instantly see the welcome screen.
There are quite a few Netgear products that come with this driver and I have no idea why - it doesn't seem to do anything and everything works fine when the key is deleted.
If you do not want to do this manually, here is a .reg file to run which should do the same job: http://ezpcltd.com/netgeargina.reg
Hope this helps you!
As this has been quite a little earner with a lot of jobs, I wasn't sure to publish this, but I think the sort of person who would self-fix wouldn't come to someone like me for a repair anyway... and I want this blog to be a honest source of good information!