I have a VS Platinum that was working fine till last night.
This morning, I powered on my receiver and saw 'no channels' message on screen. I tried to move up and down but there were no channels at all. Seems like somehow the whole memory file got deleted. I have no idea how.
I rescanned 61.5 and got a few channels back but there are still a lot more missing. I tried TP scanning but couldn't add any more channels.
Probably memory problem. Check time/date. If no success, manual load of keys after turning autoroll off. If no success, turn autoroll on and Reload latest BIN, and rescan. If no success, Load factory BIN and then latest, and rescan. Keep constant tab on current time/date.