I bought a 10' extension cable for the touchscreen. Everything works great. I also wanted a few other devices connected to I bought a belkin 4 port mini usb hub. My quickcam won't work unless the ac power is connected and switch to self powered. However the touchscreen refuses to work with it set that way. I get unknown USB device connected. However if I unplug ac adapter and set it to hub powered touchscreen works great. So I'm kinda between a rock and a hard place any ideas/suggestions other then buying another 10' extension just for touchscreen?