epg on a hard drive is ok...ish, but there are a few disavantages, spinup times etc
but really, usb sticks are best,
once the epg setup has been changed to usb,....as per my post further back in the thread, the epg should be fine
I am not sure how the problems have occurred on the OP hard drive, in that I think they were deleted, but onse the saved epg is directed to usb/media instead, I think the ptoblem will be resloved