XBMCbuntu + tbs6618

Hi everyone,
Im having some kind of problem with XBMCbuntu and my tvcard (tbs6618 dvb-c). It works fine after i install xbmcubuntu and its drivers, the problem is, when i shutdown the htpc and turn it on the next day the card doesnt load up.
I reboot and reboot and reboot.... and after a few tries it goes on again. What could be the problem?
If i enter bios of the motherboard sometimes it shows up connected other thimes it doesnt.... The mb is an asrock h77m.
Im having some kind of problem with XBMCbuntu and my tvcard (tbs6618 dvb-c). It works fine after i install xbmcubuntu and its drivers, the problem is, when i shutdown the htpc and turn it on the next day the card doesnt load up.
I reboot and reboot and reboot.... and after a few tries it goes on again. What could be the problem?
If i enter bios of the motherboard sometimes it shows up connected other thimes it doesnt.... The mb is an asrock h77m.