I just installed my new Nova-T 500 (I've switched to Kubuntu now) I get this message in the dmesg:
[ 15.140000] dvb-usb: found a 'Hauppauge Nova-T 500 Dual DVB-T' in cold state, will try to load a firmware
[ 15.156000] dvb-usb: did not find the firmware file. (dvb-usb-dib0700-01.fw) Please see linux/Documentation/dvb/ for more details on firmware-problems. (-2)
I don't think this looks good? What is cold state?