If the adapter works on a different system...then the problem has to be with your O/S.
<<...the netgear software simply refuses to run...>>
Does that mean that it doesn't install...or does that mean that the software/drivers install but the NIC gives no sign of life?
What does Device Manager reflect?
What possibly related errors are evident in Event Viewer?
Is the connection reflected when you go to Control Panel/Net & Internet Connections/Network Connections? If so, what is reflected for Details of same?
Edited by hamluis, 06 June 2010 - 08:50 AM.