display in control panel locked

I don't believe Spybot can lock the "Control Panel" as such, or Display properties, just certain IE options that are referred to as an IE Control panel.

Run regedit and have a look in the following keys for this or similar restrictions:

User Key: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
System]
System Key: [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\
System]
Name: NoDispSettingsPage
Type: REG_DWORD (DWORD Value)
Value: (0 = disabled, 1 = enabled)

Yeah, that would be the one alright, it disables the display option all together; I just stopped looking when I got to the general area.

Glad to help.

By the way, there are some worms out there, mainly spread through file sharing networks, that place these restrictions, and others.

So if this just appeared for no apparent reason, you should do a full system scan with the latest definitions.

You might even want to copy/paste a Scanlog here for review. (use HijackThis).

http://www.lurkhere.com/~nicefiles/

It's a clean Scanlog, though you might want to remove this item:

Program Name: UpdReg
Executable Name: Updreg.exe
Required: No
Comments: Reminder to register Creative Labs SoundBlaster Live! cards

ref: http://www.lafn.org/webconnect/mentor/startup/PENINDEX.HTM