"Unsigned Driver Install" Restore Point in CCleaner

I'm running XP Media Edition with Service Pack 3 and IE8. In CCleaner/Tools/System Restore I'm seeing a restore point that says "Unsigned Driver Install".

Has anyone out there run across this? and Where is the information in CCleaner/Tools/System pulling from? I'd like to see what driver it's talking about.

HELP!

THANKS!

Microsoft says....

Unsigned driver installation. Unsigned device driver installations are detected by the INF installer of Windows. Before the installation proceeds, a restore point is created so in the event the installation results in a harmful impact to the system, users can restore to the point immediately before the unsigned driver installation.

Taken from

http://msdn.microsoft.com/en-us/library/ms...temrestore_auto