The serial number is 0 (SN:0 N/A) in the Genlock Control
This article pertains to G3 Hardware (serial number ending in T) only.
If Windows was recently updated, the system gets improperly shutdown, or there has been significant changes, the serial number may be wiped out. To resolve this:
Go to [Start] > [All Programs] > [Startup] > [VGAinit3] or [G3init].
Completely shut down the system and disconnect the power cord for 20 seconds.
Now reconnect the power and boot up the system. The serial number should now be visible.