Easy all

I've been trying to sort this for ages and am having no luck! My Welcome Screen has disappeared...And I can't switch between users on XP. I've checked the options in 'How Users Log On' to make sure that Fast Switch and Welcome...
Easy all
I've been trying to sort this for ages and am having no luck!
My Welcome Screen has disappeared...And I can't switch between users on XP.
I've checked the options in 'How Users Log On' to make sure that Fast Switch and Welcome screen are ticked...I unticked, rebooted, then re-ticked...Still nothing.
I've been into Regedit with string:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\ CurrentVersion\Winlogon
and modified LogonType REG_DWORD to 0 and 1 and back again...Each time rebooting. Still nothing.
I've also added Regedit key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\]
"AllowMultipleTSSessions"=dword:0000001
Still nothing...
I've virus scanned with Norton and AVG and ran Spybot S&D...Nothing...
So, my Welcome Screen has gone! I can't bring it back even with Reg commands...
Any advice guys?