My touchscreen is not doing this scroll up / down function. I tried my just moving the page up / down. I tried it in both pdfviewer & adobeviewer for a pdf file. I also checked in a prc file opened in fbreader. It is not working there also.
It seems, otherwise touchscreen is functioning - like tap opens the quick access menu, moving left / right at the bottom of the screen goes to next page / previous page start (though as per PB user manual this action should do the scroll up / down, which is misleading).
I calibrated the touch screen already twice and tried. No improvement. Can you please help to resolve this?
Regarding key mapping for buttons, i do not see a scroll up / down option. Do you mean forward / backward option under move menu?
As you see in my post #59 above, i already have this bug and it is not scrolling in certain zoom settings with this buttons mapping to forward / backward.
Thanks for your support