Having something shiny on the wall proves nothing.
Like I said it's a bloody simple question have you tried it on your p.c.
It proves I have a bad ass pc, so I wouldn't say it proves nothing : )
Go people and buy the crappy "Inateck" card. Buy more. You know you want.
I've been having issues with my 3 sensor setup as well, jumpy tracking (in particular height changes), etc..
Can some of the people that are reporting 0 tracking issues please post pictures or diagrams of their layouts (or measurments, etc..) Also, specs of your pc, in particular how many different usb controllers and which ones your sensors are plugged into would help. Obviously there are more than a few people experiencing issues so those that aren't can help us by providing info. Thanks!
Obviously this thread went to hell. Lock it whenever you like.