i've had my nokia db2, for about 4 months running sporster 1.7.the other night i tried to select racing channel. there was the sound of a bit of a crack, but no picture came on, just an intermittent bit of sound. i tried a few other channels, some were ok but some wouldnt come on.i tried a fast rescan, but i only got about 50 channels, some of which wont come on properley. any help please.