Just a reminder to do the following before patching your system from Microsoft with the VML patch:
If you’ve unregistered the vgx.dll, you will need to re-register it. This can be done by typing the following command in the Start\Run dialog:
regsvr32 "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll
This will also work to rollback the ZERT patch.