same bug here : epub send to sd card in the reader via calibre (epub formated via calibre too). Some dead taps without light on, but, when light is on, and when there's a dead tap, the light goes off, then on again and then the reader reboots
I was rather happy with my touch, though page turning were very slow, I accepted some dead taps and other "small bugs" but this one drives me crazy
Plus : when rebooting, and opening the book I was reading don't get where the bug happened but some pages before... I'd like to return "spontaneously" where I was