This is starting to bug me. Every time I sit in the coffee shop, or even in my armchair with the reading light on (both places with halogen light), I have to use the buttons.
The reader works fine outside and in fluorescent light, but as soon as I'm in halogen light the touch screen becomes unreliable, in some cases unusable
If no one else has this issue, then maybe there is something wrong with my unit.
I'll do some thorough testing on the weekend.