WMI Class error with Win32_VideoController Adapter Ram

Whenever I pull the AdapterRam string, it returns a negative result

eg: -1gb ram when the adapter actually has 3gb.

See original post that was posted to the wrong section of the forums for further information/troubleshooting:

http://social.technet.microsoft.com/Forums/windows/en-US/79737c24-547d-4de9-b8da-1c2afc437496/wmi-class-error-with-win32videocontroller-adapter-ram?forum=w8itprogeneral#8de0ca4a-990d-4d71-9a4c-5c6b4ca49fd3

tldr; it did this when pulled with COM in mIRC, as well as in VB-but the correct information returned in C#