Kobo Aura HD --- pdf problems.

Hi guys,
I had a search of the forum and didn't find this mentioned...though searching for 'pdf' queries is probably not all that precise.

Anyway, here's my problem. When I load a PDF onto my Aura HD (via the latest Calibre) and try to view it on the Aura HD, it is only displaying approximately the top left quarter or third of the page. As far as the Aura HD is concerned, this is the whole page. There is no more of the page to be seen using the zoom features. You can only zoom further in.

I've tried things like cut and pasting the PDF onto the Aura HD, and deleting the associated .xml files .... and then I am getting an inverse of the problem: the whole page is being displayed - but shrunk to fit in the top left quarter of the screen. if I try to zoom in to this quarter, it reverts back to the original problem and starts displaying only a quarter/third of the original page as if it is the whole page....for a brief moment the Aura HD glitched and displayed the page properly, but when I tried view the next page it reverted to erroneous behaviour.

this is quite annoying, though I remain hopeful.... is this a bug that came with the 3.12 firmware ?

New user, and setting up my Aura HD for the first time updated the firmware...


any help whatsoever would be greatly appreciated. as it is i am pretty bummed out... staying hopeful though...

cheers